RHM645A 美国BALDOR电机,RHM645A重量,RHM645A尺寸,RHM645A参数 DPHSL12M12X1,25货期价格,DPHSL12M12X1,25图纸参数,DPHSL12M12X1,25采购交期 R15138交期价格,R15138参数图纸,R15138价格