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

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