BRECO聚氨酯同步带PU同步带L型规格表主营业务：BRECO同步带｜BRECOFLEX同步皮带｜BRECO聚氨酯同步带｜BRECO同步带轮｜PU同步带|BRECO皮带代理聚氨酯PU同步带L型规格表型号齿数节线长模具宽度型号齿数节线长模具宽度124L33314.33150375L100952.50150150L40381.00150390L104990.60150165L44419.10150420L1121066.80150187L50476.25150435L46435.00150210L56533.40150450L1201143.00150225L60571.50150480L1281219.20150240L64609.60150495L1321257.30150247.5L66628.65150510L1361295.40150255L68647.70150525L1401333.50150263L70666.75150540L1441371.60150270L72685.80150