... aluminium,copper et We are an ISO certified manufacturer of high quality CNC machining parts,turning, milling, forging and stamping ... for metal components & assemblies. In addition to strict quality control system, we also establish a team of manufacturing process ... offered by ISO certified manufacturer - visionseal co.,ltdQC:Strict quality control for machining work by SPC, PCP, PPAP, IQC, IPQC ...