The clamp body and keepers are malleable iron, cotter-pins are stainless steel, the other parts are steel .All ferrous parts are hot-dip galvanized.

• 线夹本体和压板为可锻铸铁件，闭口销为不锈钢制件，其余为钢制件、可锻铸铁件和钢制件热镀锌。