内外物産 List of Products and Services

With 80 years of experience, we procure parts through unique channels that only NAIKAI BUSSAN can offer. We aim for a quick response and engage in the procurement of electronic components both domestically and internationally. 【Features】 - We accommodate various needs, including minimum lot sizes. - We procure swiftly. - We provide real-time information on inventory held in Asia and Western countries. - We also offer consultations regarding alternatives and equivalent products.

• Other electronic parts

The "Partition System" is a product for evacuation shelters made of paper tubes and fabric (with antiviral treatment) that can be assembled. Ensuring the privacy of disaster victims who are forced to live in evacuation shelters for an extended period is essential. At the same time, partitions are needed to help prevent droplet infection and reduce contact between people. The size of this product is approximately 2,000mm × 2,000mm × 2,000mm. It supports long-term living in evacuation shelters with one partition space. 【Features】 ■ Can be assembled ■ Made of paper tubes and fabric (with antiviral treatment) - Antiviral treatment "Kiarie V" ■ Size is approximately 2,000mm × 2,000mm × 2,000mm *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

Our company offers products that contribute to improving living conditions in evacuation shelters. We use reinforced cardboard as the material. In the event of large-scale natural disasters such as earthquakes or typhoons, we provide various products for use in shelters, including simple beds, partitions, and toilets. 【Product Lineup】 ■ Partition System ■ Cardboard Bed GPS ■ Cardboard Toilet ■ Cardboard Table ■ Cardboard Chair, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Other safety and hygiene products
• Other consumables

The "Partition Board" is a product designed to prevent droplet infection, made from regular and reinforced cardboard. It is more affordable compared to acrylic, and you can customize it yourself, such as cutting it for telephone lines. It can be reused when no longer needed, making it an environmentally friendly item. It can be used in various places such as reception areas, classrooms, conference rooms, and offices. Please consult us regarding length and strength. 【Features】 ■ More affordable than acrylic ■ Customizable, such as cutting for telephone lines ■ Length and strength are negotiable ■ Can be reused when no longer needed, environmentally friendly ■ Film-coated types are also available *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

This document introduces the assembly method for the dumbbell GPS. First, check the parts such as the side partitions and the top panel. The shapes and quantities are clearly presented with photos. Additionally, the assembly method is explained step by step, so please make use of it. *For more details, please refer to the PDF document or feel free to contact us.*

• Other safety and hygiene products
• Other consumables

The "DANBED GPS" is a product made of lightweight and durable reinforced cardboard. With a height of over 30 cm, it is less prone to collecting dust, making it easy for the elderly and pregnant women to get in and out of bed. It can be easily disassembled and transported, making it convenient for use during disasters or for personal use, such as when moving. 【Features】 ■ Load capacity of 1 ton ■ Lightweight and durable ■ Easy assembly without tools ■ Easy to recycle ■ Made of reinforced cardboard *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

We handle emergency response disaster toilets (Dantoilet). This product is recommended for preparedness during disasters, such as situations where the toilet cannot flush due to power outages. It has a weight capacity of approximately 320 kg and weighs about 1,800 g. It can be lightly washed with water. 【Features】 ■ Recommended for preparedness during disasters ■ Can be used as a Western-style toilet when installed on a Japanese-style toilet ■ Can be lightly washed with water ■ Weight capacity of approximately 320 kg ■ Weighs about 1,800 g *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

The "Dante Table" is a cardboard table that is easy to assemble without the need for tools. Being made of cardboard, it is also easy to recycle, and it is lightweight yet sturdy. With just 4 parts, it is easy to carry. Sizes and other specifications can be customized according to your needs. Please feel free to consult us. 【Features】 ■ Lightweight and durable ■ Easy to assemble without tools ■ Easy to recycle since it is made of cardboard ■ Easy to carry with just 4 parts ■ Can be disassembled and reassembled multiple times *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

The "Danchair" is a cardboard chair that can be disassembled and assembled repeatedly. It consists of just three parts, making it easy to carry. In addition to being lightweight and durable, it is also easy to recycle because it is made of cardboard. Sizes and other specifications can be accommodated according to your preferences. Please feel free to consult us. 【Features】 ■ Lightweight and durable ■ Easy assembly without tools ■ Easy to recycle because it is made of cardboard ■ Easy to carry with just three parts ■ Can be disassembled and assembled repeatedly *For more details, please refer to the PDF document or feel free to contact us.

• Other safety and hygiene products
• Other consumables

Introducing the scrap processing of various metal materials, which serve as an important base for creating new ideas and new products, including new materials and electronic materials. Scrap processing of various metal materials generated from domestic and international trading partners. This includes pure nickel, copper, aluminum, and other metal materials. *For more details, please refer to the PDF document or feel free to contact us.*

• Other polymer materials

Introducing the important base for creating new ideas and new products: new materials and electronic materials, specifically the chemicals of 'Materials'. We have participated in the development phase with Japan's top-level electrolyte manufacturers and proposed customized electrolytes to major capacitor manufacturers, which have been adopted. *For more details, please refer to the PDF materials or feel free to contact us.

• Other polymer materials

Introducing the important base for creating new ideas and new products: new materials and electronic materials. We present our resin products made from PVC and PET. Primarily, PVC tubes and PET films are used for insulation purposes by major secondary battery manufacturers (lithium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries). In recent years, there has been an increase in deliveries to battery units for automotive batteries, and this is expected to be an expanding market area. 【Features】 ■ PVC tubes and PET films are adopted ■ Recently, deliveries to battery units for automotive batteries have also increased ■ Expected to be an expanding market area *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

It is used in the neutralization process for the treatment of wastewater generated during the production of secondary batteries, using acidic "industrial chemicals." Sulfuric acid, hydrochloric acid, caustic soda, formic acid, sodium hypochlorite, acetic acid, hydrogen peroxide, etc. are employed. The delivery form is a tank truck. 【Features】 ■ Used in the neutralization process for the treatment of wastewater generated during the production of secondary batteries ■ Sulfuric acid, hydrochloric acid, caustic soda, formic acid, sodium hypochlorite, acetic acid, hydrogen peroxide, etc. are employed ■ The delivery form is a tank truck *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

Niobium is a rare metal classified as a transition element and is also a superconducting element. Due to its similar properties to tantalum, there was a time in history when it was mistakenly thought to be the same as tantalum. Its applications include use as capacitors and magnets, as well as an additive element, and it is expected to be used as a niobium alloy in superconducting magnets for linear motor cars. 【Features】 - Classified as a rare metal in the transition elements - Also a superconducting element - Used as capacitors and magnets, or as an additive element - Expected to be used as a niobium alloy in superconducting magnets for linear motor cars *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

"Molybdenum" is a material characterized by its very high melting and boiling points. Among high melting point metals, it is less expensive than tungsten, and its strength at high temperatures is greater than that of other high melting point metals, with a small coefficient of thermal expansion. Today, it is widely used as an extremely stable material in vacuum environments for applications such as electron tubes, light bulbs, vacuum furnaces, heaters, and electrodes. [Features] ■ Very high melting and boiling points ■ Less expensive than tungsten among high melting point metals ■ Greater strength at high temperatures than other high melting point metals, with a small coefficient of thermal expansion ■ Extremely stable material in vacuum environments ■ Widely used in electron tubes, light bulbs, vacuum furnaces, heaters, electrodes, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

"Tungsten" is a material that has a high melting point among metals and relatively high electrical resistance for a metal. It is used as a filament in light bulbs, but its usage has decreased due to the spread of LED technology. Tungsten alloys and tungsten carbide are used in high-end cutting tools due to their very high hardness. [Features] ■ High melting point among metals ■ Relatively high electrical resistance for a metal ■ Used as a filament in light bulbs ■ Tungsten alloys and tungsten carbide have very high hardness *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

"Tantalum" is one of the vanadium elements and is a material that becomes passive in the air and has corrosion resistance. It is particularly strong in acid resistance, rich in malleability and ductility, and easy to process. It is commonly used in capacitors and is a metal that is harmless to the human body, making it suitable for use in artificial bones, artificial joints, and dental implants. [Features] ■ One of the vanadium elements ■ Becomes passive in the air and has corrosion resistance ■ Particularly strong in acid resistance, rich in malleability and ductility, and easy to process ■ Commonly used in capacitors ■ Harmless metal to the human body *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

"Copper wire, insulated wire, special wire, and plated wire" are materials that have been used for many years in motors for home appliances and material handling, as well as for various wiring applications. Nickel wire and nichrome wire are also gaining attention for use in primary and secondary battery wiring applications. Additionally, they are used for circuit connection applications in circuit boards. 【Features】 ■ Used for many years in motors for home appliances and material handling, as well as for various wiring applications ■ Gaining attention for use in primary and secondary battery wiring applications ■ Also used for circuit connection applications in circuit boards *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Wiring materials

"Welding material (electron beam welding)" is a material used in power steering control circuits for vehicles, engine speed control circuits, and the battery unit parts for plug-in hybrid vehicles (PHVs) that are expected to see increased production in the future. Electron beam welding is a welding method that utilizes thermal electrons emitted by heating the cathode with a filament, and accelerates these electrons using an electromagnetic field created by a voltage difference, heating through the kinetic energy of the electrons. [Features] - Adopted for power steering control circuits for vehicles, engine speed control circuits, and battery unit parts for PHVs expected to see increased production in the future. - Utilizes thermal electrons emitted by heating the cathode with a filament. - Heats through the kinetic energy of electrons accelerated by an electromagnetic field created by a voltage difference. *For more details, please refer to the PDF document or feel free to contact us.*

• Welding Machine
• Other polymer materials

"Surface treatment materials (various plating processes such as Au, Ni, Cu, Sn, etc.)" are materials widely used in the electrical contact parts of secondary processed batteries and circuit boards in various communication devices, power tools, and electric bicycles. We select surface treatment manufacturers (plating contractors) that meet the needs and respond to customer demands for small lots and multiple specifications. 【Features】 ■ Widely adopted in the electrical contact parts of secondary processed batteries and circuit boards ■ Selection of surface treatment manufacturers (plating contractors) suitable for needs ■ Response to customer demands for small lots and multiple specifications *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

We would like to introduce the materials we handle: "pure nickel materials, clad materials, alloy materials, copper materials, and stainless steel materials." These materials are widely used in secondary battery applications, including cell components for major battery manufacturers' lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries, as well as in secondary battery protection circuit boards, establishing a supply system that matches customer needs. 【Features】 ■ Widely adopted for secondary battery applications ■ A supply system tailored to customer needs *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials
• stainless
• alloy

Our company has been providing services to customers as a new product proposal company in fields such as "materials," "electronic devices and parts," and "electronic units." Our features include not only an "unwavering trust relationship with manufacturers built over more than 80 years of transactions," but also the ability to handle a wide variety of products through dedicated sales representatives, both domestically and internationally, and a focus on proposing products from the new planning stage to our customers. With innovation as our motto, we aim to enhance our proposal capabilities and pursue client satisfaction by leveraging our excellent human resources. We look forward to your continued support. 【Business Activities】 ■ Wholesale import and export sales of materials, electronic devices and parts, electronic units, etc. ■ Import and export operations (logistics and commercial flow outsourcing) ■ Development and sales of AIRQUIN and AIRQUIN-related PVC products ■ E-commerce business (overseas BtoB, domestic BtoC) ■ Indonesia business (product sales support, beauty salon business) ■ Sales agent for electricity for JXTG Energy Corporation *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials
• Other electronic parts
• Chemicals