... 3.Mirror polish 4.specification:2" 5.fish rod holder,rod holder boat 1.Name:Fishing Rod Holder,fish rod holder,rod holder boat,mounting rod holder2.Material:ss316 or ss3043.Surface:Hand polish ... . Control measuring ,machining ,pressure inspection up to 200bars ,mechanical values for tensile strength. ,yield stress ,notched bar impact tenacity, x-ray ...