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全螺纹螺柱ASTM A193/B7 B8M B16 A320/L7双头螺栓全螺纹螺杆M 16
Astm A320 A193/B8M英国和美国双头螺钉和螺栓1/ 5/8 3/4-10 7/8
ASTM A193/B7M B8M B16 A320/L7M英制美制双头螺丝螺栓1/2 5/8-11
化工 国标ASTM A193 B8/B8M全螺纹双头螺柱螺栓304不锈钢螺柱双头
ASTM A193/B8M英制美制双头螺丝螺栓螺钉螺柱螺杆1/2 5/8 3/4 7/8
双头螺栓定制英制螺柱ASTM A193/B7 B8M B16 A320/L7双头螺丝定做
全螺纹螺柱ASTM A193/B7t B8M B16 A320/L7双头螺栓全螺纹螺杆M 1
A193B8全螺纹螺栓A194.B8螺母
ASTM A193 B8M Class2牙条 牙棒 全螺纹螺丝 丝棒 螺栓非标螺柱
国标英美制304 316全螺纹螺柱 双头螺丝螺栓 牙条丝杆A193 B8 B8M
ASTM A193/320 B8 B8M B8T B8C 英/美制不锈钢双头螺栓/牙条
