종료
Plain, Zinc Plated, HDG,Black Oxide, Nickel, Chrome, etc.
물자
Carbon Steel, Stainless Steel, Alloy Steel, etc.
Material
Carbon Steel, Stainless Steel, Alloy Steel, etc.
Surface treatment
Plain, Zinc Plated, HDG,Black Oxide, Nickel, Chrome, etc.
Grade
Class 4.8, class 6.8, 8.8,10.9 or 12.9 or other grade standard