... years experience 4.MOQ:500 pcs Precision CNC machining stainless steel thread shaft Itemtopicdetails1materialstainless steel:303,304,316,420,630,3Cr13,4Cr13,420J2 ... 4IPQCQC must inspect 2-5 parts every 2 hours , i.e., in-process quality controlstep 5spot checkQC must inspect parts as ... me or add me on your skpye ! CNC Machining Parts stainless steel shaft for machinery industry