... . marine hardware stainless steel 316L, 316, 304,304L mirror polishing casting marine parts. marine hardware. ship parts. marine fitting. marine parts ... . Material: stainless steel 316L, 316, 304, 301.3. Craft: precision casting. Lost wax injection, silica sol based technical.4. Surface treatment: mirror polishing ... OEM/ODM is offered. hardware,marine hardware,stainless steel hardware,casting hardware