... 4.Small volume,carring a big weight US Type Screw Pin D Shackle G2101.According to the production ... standar are generally classified into US type, JIS ,GB. US standar of small volume ... : Bow shackle, Bow shackle with nut, D type shackle, D type shackle with nut.4. Material quality : Carbon ... clients urgency,services for customers saitisfaiction . US Type Screw Pin D Shackle G210