About Us

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  Shengzao now mainly has two products ranges in cold pressur Shanghai ShengZao Mechanical &Electrical Equipment Co.,Ltd.lding machine and dies(for jointing non-ferrous metal wires without any heat, fillers or fluxes) and cold welding machine(helps to reduce cost and improve production quality in many areas,such as plastic moulds,casting,dies,hardware and any industries that have troubles with surface defects in ferrous metal.)
       Shengzao was formed in 2001 with only several staffs.We then fastly grow into a company with large fabrication.Products now have been sold to more than 30 countries and regions abroad.An comprehensive sales and distribution network has been established to  meet  customer\'s requirements on time .Have won a very good reputation in wire and metallic industry
       Our cold pressure welding machines can weld copper wires between ?0.06 ~?25mm and aluminum wires between ?0.08 ~?35mm
  We are now the leader enterprises throughout the profession in domestic market. All products have to pass strict inspection and standard Q/YQJT 1-2004.
       Our cold welding machine which we also called strip welding uses resistance welding process. The heat is generated by the passage of electrical current through the joint of the workpiece and the welding sheet. The heat is intelligently controlled to be large enough to fuse the material locally and form a nugget at the interface, and small enough not to anneal or quench the workpiece. This welding technique is better than conventional repair methods in many aspects.We now own metal defect mending machine,utrasonic mold polisher,intelligent repairing cold welding machine,screw extractor,hole-puncher.We are dedicated to providing the best solution for manufacturing enterprises to reduce cost and improve efficiency.
  Shengzao keeps strong sense of responsibility,respect our staffs and provide endless developing opportunities.We are using our enthusiasm, persistence, confidence and do our best to offer longlasting solutions to meet their manufacturing demands