... Samples:free samples 4.Certificate: ISO9000,CE stainless steel quick coupling Specifications:1,Material: 304,316,316L,304L,CF8,CF8M ... we have 8 years Casting&Machined experience, and have first-class production line.Precision Invest Casting: Wax:162 American Wax. ... Lathes & 12 Manual Lathes Quality Control: 4 QC, first-class Lab, Spectrograph "Q4 TASMAN" Technology from Germany Strong Production ...