... Qingdao lianhai hydraulic co., ltd. is specialized in the large-scale welding, stamping, bending, punching, steel structure and all kinds ... pieces and processing with supplied drawings. For the metal bending part ,the details as follows:1.Over 14 years experience ... metal bending parts.2.OEM sheet metal stamping, punching ,welding part, CNC bending, cutting.3.Materials: steel, stainless steel, carbon ...