■材質(zhì):鋅合金主體、鋼鐵擋片■Material: Body-Zinc alloy、Cam-Steel ■表面處理:黑色電著主體,鍍鋅擋片■S.Tr:Black coated,Cam-zinc plated ■Easy grip adjustment ■Reduce or eliminate noise and rattles cause by vibratio ■The cam could compression 7m/m,to improve strength and tightly close for use
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