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  6. Plastic welding processing (tanks, piping, fittings, etc.)

Plastic welding processing (tanks, piping, fittings, etc.)

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last updated:Jan 27, 2026

第一商工
第一商工
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Leave plastic welding processing to us. We can handle materials such as PVC, PP, and fluoropolymer resins.

This is an introduction to plastic welding for tanks and piping. Welding is performed using resin welding rods. We can accommodate items ranging from small to large. Quality inspections can be conducted depending on the product size, as follows: ■ Liquid tanks... Water leakage test by filling with water. ■ Air tanks... Air leakage test by submerging in water. For more details, please contact us.

    Contract manufacturingProcessing Contractplastic
タンク 水漏れ検査3.jpg

Plastic welding processing (tanks, piping, fittings, etc.)

タンク 水漏れ検査3.jpg
タンク 水漏れ検査3.jpg
  • Related Link - http://www.daiichi-s.co.jp/business/resin/
  • Special site - Product/service details - https://pr.mono.ipros.com/daiichi-s/product/

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【Manufacturing Method】 Plastic welding processing 【Possible Materials】 ■ Polyvinyl chloride (PVC) ■ PP ■ Fluoropolymer ■ PET ■ Acrylic ■ Polycarbonate (PC)

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Delivery Time

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Applications/Examples of results

■Liquid tank ■Air tank ■Piping ■Fittings ■Semiconductor equipment

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Plastic bonding and welding processing

Plastic bonding and welding processing

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Daiichi Shoko Co., Ltd. Company Profile

Daiichi Shoko Co., Ltd. Company Profile

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Company information

第一商工

第一商工

Resin/Plastic

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Daiichi Shoko Co., Ltd. is based in Nagano Prefecture and engages in the contract processing and sales of industrial functional and mechanical parts made from various materials. Centered around its own manufacturing plant, the company utilizes plastics, metals, rubber, films, sponges, inorganic materials, and composite materials to provide a wide range of products and services related to "monozukuri" (manufacturing) across diverse industrial sectors. Furthermore, it offers specialized units and equipment products assembled from functional parts made of resins and metals, achieving high cost performance. As a trusted partner, we assist our customers in making further leaps into new and advanced fields they aim to pursue.

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