... steel 2.Surface treatment:galvanized 3.2 times deformation testing 4.Small volume,carring a big weight US Type Screw Pin D Shackle ... standar are generally classified into US type, JIS ,GB. US standar of small volume ,carring a big weight are widely used.2 ... :G209 (BW) ,G210(DW) ,G2130 (BX) ,G2150 (DX).3.According to the type are divided into: Bow shackle, Bow shackle with nut ...