We have published a case study collection on chemical tanks (chemical dosing tanks)!

We propose safe and economical designs tailored to usage conditions! A wide variety of chemical tanks available.

This catalog features chemical storage tanks that can accommodate various applications. We offer a lineup including "PVC tanks," which are easy to process and highly versatile, as well as "FRP tanks." With a wide range of options available, we propose safe and economical designs tailored to your usage conditions. [Contents] ■Chemical Tanks *For more details, please refer to the PDF document or feel free to contact us.

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Custom tanks can also be manufactured! Chemical solution tanks used in chemical equipment.

This product is a chemical tank that is easier to process compared to PE tanks. As a result, it is used in various scenes and is overwhelmingly adopted in the chemical equipment sector. We also accept custom tank production according to various requests. 【Features】 ■ Easy to process ■ Overwhelmingly adopted in the chemical equipment sector ■ Custom tank production according to various requests is also possible *For more details, please refer to the PDF materials or feel free to contact us.

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From a 50-liter chemical tank to a 50,000-liter super large poly tank! Achieving space-saving with the same capacity ratio.

MC-type cylindrical sealed tank. Shuts out ultraviolet rays, protecting delicate internal solutions. 【Features】 ■ Outer layer made with carbon black pigment for UV protection. ■ Inner layer is natural and always clean. ■ Perfect for large storage. PVC tanks are easier to process compared to PE tanks. As a result, they are used in various scenarios. You can often see equipment such as pumps, stirrers, level switches, and pH meter mounts installed on the top as much as allowed. In distinguishing between the use of PE tanks and PVC tanks, PVC tanks are relatively weak against impact, and PE tanks are used in civil engineering sites due to surrounding conditions. However, PE tanks do not offer as much flexibility in processing as PVC tanks. Currently, PVC tanks are overwhelmingly adopted in the chemical equipment sector. *For more details, please download the PDF document or feel free to contact us.*

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From a 50-liter chemical tank to a 50,000-liter super-sized poly tank! Achieving space-saving with the same capacity ratio.

Rich in sizes, open round type. 【Features】 ■ Outstanding rigidity due to triple-layer foam + reinforced frame ■ Suitable for various applications from 50L to 20,000L * The lid for MH-2000 and below is made of PE molded material, while MH-3000 and above is made of PVC processed material (gray color). * MH 50 to MH 1000 is also available in white. PVC tanks are easier to process compared to PE tanks. Therefore, they are used in various scenes. You can often see equipment such as pumps, mixers, level switches, and pH meter mounts installed on the top as much as allowed. In distinguishing between PE tanks and PVC tanks, PVC tanks are relatively weak against impact, and PE tanks are used in civil engineering sites due to the surrounding conditions. However, PE tanks do not offer as much freedom in processing as PVC tanks. Currently, PVC tanks are overwhelmingly adopted in the chemical equipment sector. * For more details, please download the PDF materials or feel free to contact us.

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Ideal for the injection, stirring, and dissolution of pharmaceuticals! We will select according to your application.

The "PE Tank" is a chemical tank that can be used for various chemicals. We also offer types that are compatible with high density and have excellent chemical resistance. We will select according to your application. Options such as drain pans, pump stands, and locks are also available. 【Features】 ■ Standard equipped with a liquid level gauge for easy confirmation of liquid volume (with float ball) ■ The PVC cover on the top can be processed for the installation of mixers and pumps ■ Can be securely fixed with anchor brackets ■ Its rectangular shape achieves space-saving compared to cylindrical tanks of the same capacity *For more details, please refer to the PDF materials or feel free to contact us.

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50 liters to 50,000 liters! It is highly resistant to chemicals, has excellent corrosion resistance, and is minimally affected by various chemical agents such as acids and alkalis, making it very durable.

If you are looking for weather resistance, heat resistance, and chemical resistance, then an FRP tank is the solution. ■ Reasons It can accommodate strong acids, strong alkalis, pure water specifications, and various other applications. ■ Basic Information ● Available in a wide range of sizes in an open round type ● ■ Excellent rigidity due to a three-layer foam structure and reinforcement frame ■ Suitable for various applications from 50L to 20,000L ■ Standard Accessories - Chemical inlet (with lid) - Level gauge - Drain outlet (without valve) - Pump stand - Lifting hook ■ Options - Stirring machine stand - Level gauge mount - Various flanges for liquid inlets *Installation may not be possible depending on flange diameter. *Allowable specific gravity: 1.2 *Max temperature: 80℃ *For more details, please request documentation or contact us.

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As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to inform you about our participation in the IT Trend EXPO 2026 Spring. 《Exhibition Information》 With the concept of "New encounters will change tomorrow's work," one of the largest online exhibitions in the industry will be held. NTT TechnoCross will exhibit in the Human Resources Comprehensive category. We have prepared numerous discussions and sessions featuring special guests who are active on television, allowing even those who are usually busy to efficiently gather information on products and services related to IT and DX. Additionally, the first 10,000 participants will receive a 500 yen Amazon gift card. Please apply early. 《Exhibition Overview》 March 3 (Tuesday) to March 7 (Saturday), 2026, online (free: pre-registration required) 《Participation Application》 https://it.expo.it-trend.jp/key/opl7kgdj *Please apply (free) from the "Receive Ticket / Proceed to Participation Registration" link at the above URL.

The TV commercial "What Will You Do in the New Era?" featuring model and actress Akane Horita will begin airing on December 26, 2025. This work expresses the desire of Tokei Densan to respond to the diverse needs of various industries in today's society, where new technologies, such as the expansion of the AI market, are competing with each other, and to nurture and blossom our customers' futures. Please pay attention to Akane Horita, who is dressed in stylish outfits, listening to the concerns of the target audience and offering support. # CM Overview Title: "What Will You Do in the New Era?" (30 seconds / 15 seconds) CM URLs 30 seconds: https://youtu.be/y_lMs0HRj3w 15 seconds: https://youtu.be/egpzMfh8Kok

Thank you very much for your continued support. We would like to inform you that our company will be closed for the year-end and New Year holidays as follows: Year-end and New Year holiday period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) We apologize for any inconvenience this may cause and appreciate your understanding. *Please note that inquiries made through our website will also be responded to after January 5, 2026 (Monday).