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12.9 Grade Socket Head Cap Screws High Tensile Strength DIN912 Constructural Bolt, Find Details and Price about DIN 912 Brass Hex Socket Head Bolt Stainless Steel DIN912 from 12.9 Grade Socket Head Cap Screws High Tensile Strength DIN912 Constructural Bolt - Yibang Machinery Technology (Handan) Co., Ltd