... ,PVC,PBT,PE,PMMA,PA etc. 2) Mould Cavity: Single or multi-cavities. 3) Mould material: Steel 1045, P20 , Cr12, DC53 , ... Sheng Electric Motor Co., Ltd is specialized in making insert mould injection molding, plastic injection molding, one cavity and multi-cavity ... manufacturer specialized in OEM injection plastic parts from design to rapid prototype to mould to production for more than 15 years.We passed ...