NUP308U重量,NUP308U尺寸,NUP308U参数51214-重量,51214-尺寸,51214-参数,GIR12-UK型号尺寸，GIR12-UK轴承价格,GIR12-UK采购FYTB40WF货期价格,FYTB40WF图纸参数,FYTB40WF采购交期25526...