... testing 4.Small volume,carring a big weight US Type Screw Pin D Shackle G2101.According to the production standar are generally ... divided into: Bow shackle, Bow shackle with nut, D type shackle, D type shackle with nut.4. Material quality : Carbon steel, alloy steel, ... customer want, anxious clients urgency,services for customers saitisfaiction . US Type Screw Pin D Shackle G210