Nippon Seisen Co.,Ltd. manufactures and sells stainless steel wires in Japan and internationally. It offers stainless-steel wires comprising spring, micro, cold heading, shaft, weaving, and high alloy/titanium wires for use in vehicles, aircraft, office automation appliances, electric appliances, medical instruments, commodities, and leisure goods, as well as screws, steel nettings, etc. The company also offers filament yarn, cloth, tape/belt, felt, knit, sleeve, chop, and other metal fibers under the NASLON brand name. In addition, it provides filters, such as metal filters, including NASLON filters, NPM filters, EXCEL PORE, FINE MET, and re-washable systems for synthetic fiber, film, resin, nuclear and thermal power generation, petroleum refining, medical, and other applications; and semiconductor gas filters for process and bulk gases, component protection, integrated gas panels, and diffusers. Further, the company offers palladium alloy roll-plated hydrogen separation membrane for high purity hydrogen gas production and purification; high-strength copper-alloy wire for optical pickup and camera module; stainless steel wire for high corrosion resistant/heat resistant springs; hydrogen embrittlement resistant stainless steel spring wire; duplex stainless-steel wire for corrosion resistant springs, ropes, fasteners, wire mesh, etc.; and co-based alloy for medical use. The company was formerly known as The Sanshin Special Wire Manufacturing Company and changed its name to Nippon Seisen Co.,Ltd. in October 1956. Nippon Seisen Co.,Ltd. was incorporated in 1951 and is headquartered in Osaka, Japan. I Nippon Seisen Co.,Ltd. operates as a subsidiary of Daido Steel Co., Ltd.