Material: steel /stainless steel block. We sell all kinds of pulley blocks,and all procucts ... have been approved by ISO9001. H407 champion snatch block .tail-board 1.Material: Stainless steel, Carbon steel, Alloy steel2 ... (JIS,DIN,US,EN, trawling shackle, deformed shackle, free forging, die forging, bow style, D style), turnbuckle, clip, thimble, link & chain ...