20M型标准皮带宽230mm规格齿数形状节径外径WL1KX轮毂直径内孔透孔外径档边外径档边内径档边型号34-20M34B/W216.45212.13250283240-16532-240165F-4024016536-20M36B/W229.18224.87250283240-17832-250178F-4025017838-20M38B/W241.92237.60250283240-18132-265190F-4026519040-20M40B/W254.56250.33250283240-20332-275203F-4027520344-20M44B/W280.11275.79250283240-21032-300228F-4030022848-20M48B/W305.88301.26250283240-22832-325254F-4032525452-20M52B/W331.04326.72250283240-22832-350279F-4035027956-20M56B/W356.51352.19250283240-22832-375305F-4037530560-20M60W381.97377.652502832404022838318405330F-4040533064-20M64W407.44403.122502832404022838343430356F-4043035668-20M68W432.90428.582502832404022838366455382F-4045538272-20M72W458.37454.052502832404022838392480407F-4048040780-20M80W509.30504.982502832404028038445530457F-4053045790-20M90W572.96568.642502832404028038508595521F-4059552120M型标准皮带宽290mm规格齿数形状节径外径WL1KX轮毂直径内孔透孔外径档边外径档边内径档边型号34-20M34B/W216.45212.13305343295-16532-240165F-4024016536-20M36B/W229.18224.87305343295-17832-250178F-4025017838-20M38B/W241.92237.60305343295-18132-265190F-4026519040-20M40B/W254.56250.33305343295-20332-275203F-4027520344-20M44B/W280.11275.79305343295-21032-300228F-4030022848-20M48B/W305.88301.26305343295-22832-325254F-4032525452-20M52B/W331.04326.72305343295-22832-350279F-4035027956-20M56B/W356.51352.19305343295-22832-375305F-4037530560-20M60W381.97377.653053432954222838318405330F-4040533064-20M64W407.44403.123053432954222838343430356F-4043035668-20M68W432.90428.583053432954222838366455382F-4045538272-20M72W458.37454.053053432954222838392480407F-4048040780-20M80W509.30504.983053432954228038445530457F-4053045790-20M90W572.96568.643053432954228038508595521F-40595521产品企业***：)