... : 1.strict quality control 2.leadtime guarantee investment casting handle with stainless steel and carbon steel:1.Quality standard: ... Clearing and finishing; Heat treatment; Correction and inspectionMaterialSS:303,304,304L,316,316L,CF8,CF3,CF8M,CF3M,1.4308,1 ... 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking investment casting handle with stainless steel and carobn steel