... quality & delivery on time 3.Pipe coupling all are nonstandard parts 4:OEM acceptable 5:ISO9001 nonstandard Pipe couplingSpecifications: 1.High quality control ... turning lathe, wire EDM, etc)Various materials(stainless steel, aluminum, brass, steel alloy, plastic etc) Finish: Zinc plated, Chromated plated, Electrophoresis ... ≤0.02 griding machine2 ≤0.02drilling machine10≤0.02 nonstandard Pipe coupling