... Step 1.R&DWe support customer R&D. Make the files or improve the design if you needed. ↓2.Negotiationthe quality, price, ... printing , assembly, and stampings parts,casting parts, machinings parts as well as nice after-sales service in long term. At present, ... plastic moulds ourselves, and handle complicated mass production for products as required. For more detailed information, pls fell free to ...