8.8级外六角法兰面带齿螺栓GB5789镀锌加大螺丝M4M5M6M8M10-M16

8.8级外六角法兰面带齿螺栓GB/T5787镀锌带垫螺丝M5M6M8M10M12M16

10.9级镀锌GB5789法兰面螺丝带齿高强度螺栓带垫防滑M5M6M8M10M12

镀锌8.8级高强度外六角法兰面带垫螺栓法兰螺丝m5m6m8m1012GB5787

8.8级镀锌外六角法兰面螺栓带垫螺丝GB5789六角法兰螺丝M5M6M8M10

DIN6921德标8.8级外六角法兰面带齿螺栓镀锌带垫螺丝M4M5M6M8-M16

304不锈钢GB/T5789外六角法兰面螺栓316带垫花齿防滑螺丝M4M5-M12

4.8级铁镀锌外六角十字法兰螺丝十字槽法兰面外六角螺栓M4M5M6M8

304不锈钢GB5787六角法兰面螺丝GB5789带齿防滑螺栓M5M6M8M10M12

304不锈钢法兰面外六角螺丝 带齿六角法兰5789大头螺栓 M5M6M8M10

8.8级外六角法兰面带齿螺栓DIN6921镀锌带垫防滑螺丝M4M5M8M12M16

304不锈钢十字法兰螺丝 外六角法兰面螺栓 防滑带垫螺钉M5 M6 M8

8.8级外六角法兰面螺丝带垫片螺栓M5M6M8M10M12*8/10/12/16/20-80

304不锈钢外六角法兰面螺栓带垫螺丝小头GB5787M5M6M8M10M12

304不锈钢外六角螺丝钉平面法兰螺栓带齿法兰面螺杆M4M5M6-M10M12

8级高强外六角法兰面螺栓M5M6 外六角带垫螺丝六方螺钉螺杆

10.9级法兰面螺栓外六角螺丝GB5787GB5789细牙/标准牙/加大M6-M20

TAH11-M6-L12 TAH15-M5-L8六角法兰面螺栓 标准号GB/T 5789-1986

达克罗10.9级外六角法兰面螺栓M5M6M8M10M12M14带垫防滑汽配螺丝

8.8级外六角法兰面带齿螺栓GB5789镀锌带垫螺丝M4M5M6M8M10-M16

高强度10.9级法兰面螺栓 M12*55 10只/份

直径6/8/10/12MM10.9级外六角法兰面螺栓螺丝GB5789高强度外六角