... 旋转一半扣件 Semi-Coupler 冲压旋转扣件 Swivel Coupler 冲压直角扣件 Double Coupler (Punched) ...
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German Swivel Coupler 德式旋转扣件
Casting-steel Swivel Coupler 铸钢旋转扣件
American type Dual Swivel Coupler 美式重型旋转扣件
Slide-resistance Dual Swivel Coupler 防滑重型旋转扣件
swivel-butt coupler 回转车钩
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