Hangzhou Shunhao Metalwork Co., Ltd.
i13,i15—Signify the transmission ratio of movement's shaft gear which is xx.
L—Signify the length of needle pivot (which means shaft gear).
e—Signify the length of needle pivot over the splint
φ99*19 bayonet back entry with zero set
Y63 Bottom entry prevent blast holes,inter-fotation with plastic surface
φ100*43 screw-in bottom entry with front edge 280
φ52 pressed back entry
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