The clamp body, keepers and socket-clevis are malleable iron, the closed-pin is stainless steel work .The other parts are steel, All ferrows parts are hot-dip galvanized .

• 线夹本体和压板可锻铸铁件，闭口销为不锈钢制件，可锻铸铁件和钢制件热镀锌。