齿盘/盘爪 齿盘 104BCD 齿盘(32-38T) 104BCD 齿盘(配曲柄)(32-38T) SR 齿盘 (3mm 偏移) (30-38T) SR 齿盘 (6mm 偏移) (30-38T) 盘爪/盘钉 SH转104BCD SR转104BCD SR转110BCD SR转110BCD SR转130BCD 盘钉