... control 2.leadtime guarantee investment casting handle with stainless steel and carbon steel:1.Quality standard: ISO9001:20002.Technique: silica ... and finishing; Heat treatment; Correction and inspectionMaterialSS:303,304,304L,316,316L,CF8,CF3,CF8M,CF3M,1.4308,1.4408,1.4404 ... 40Cr etcsizeAccording to customers' requirementdesignpacking investment casting handle with stainless steel and carobn steel