... various Material We are an ISO certified manufacturer of precision aluminum CNC machining parts, turning, milling, forging and stamping parts in ... customers' drawings or samples.Send us prints or samples for machining work, info of mateiral, quantity then we can quote ... by ISO certified manufacturer - visionseal co.,ltdQC:Strict quality control for machining work by SPC, PCP, PPAP, IQC, IPQC, FQC ...