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Qingdao Ruijin Machinery Co., Ltd. is a company engaged in the research, development, and manufacturing of new plastic machinery equipment and pipe molds. The company's main products include: PVC mine-use double-resistant pipe molds, PVC hollow inner spiral molds, PP ultra-quiet inner spiral pipe molds, PE inner spiral pipe molds, PVC electrical conduit molds, PPR cold and hot water pipe molds, PE pipe molds, PVC large-diameter water supply pipe molds, PVC large-diameter drainage pipe molds, PVC high-speed sizing sleeves, PE high-speed sizing sleeves, PPR PERT high-speed sizing sleeves, feeding machines, as well as equipment for mine-use steel pipe plastic dipping, steel pipe plastic coating, PVC steel wire reinforced pipes, large-diameter double-wall winding pipe production lines, U-PVC and C-PVC pipe production lines, specialized double-resistant PVC pipe production lines for coal mine gas extraction and drainage/water supply, PP, PE, PPR, PPB water supply and gas pipe production lines, silicon core pipe production lines, aluminum-plastic, steel-plastic, copper-plastic pipe production lines, PVC, PE, PP corrugated pipe production lines, unidirectional and bidirectional geogrid production lines, wood-plastic sheet production lines, PVC, PP, PE, XPS sheet and board production lines, polymer paint-free board production lines, medical infusion tube production lines, and other equipment. Their products are widely used in municipal construction, building water supply and drainage, telecommunications, packaging products, gas transmission, petroleum, chemical, agricultural, and other fields. The company brings together industry professionals and has established long-term partnerships with multiple institutions for new product development and research, rapidly integrating scientific and technological achievements to provide users with the most competitive production technology and equipment, creating optimal benefits for users. The company warmly welcomes both new and existing customers to visit, guide, and collaborate for mutual success. Adhering to the service principle of "integrity" and the corporate philosophy of "standardization," the company sincerely cooperates with friends from all walks of life to progress together.