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M8 M10 M12 M14 M16 M18 M20 8.8 Grade HDG Anchor Bolt/ Galvanized Expansion Bolts/Dacromet Coating Bolt/Stainless Steel Expansion Bolts, Find Details and Price about 8.8 Grade HDG Anchor Bolt Galvanized Expansion Bolts from M8 M10 M12 M14 M16 M18 M20 8.8 Grade HDG Anchor Bolt/ Galvanized Expansion Bolts/Dacromet Coating Bolt/Stainless Steel Expansion Bolts - QINGHE SANJU TRADING CO., LTD.