短语词组短語steel l retainer 夾釺器Steel bearing retainer crown 鋼板冠型軸承保持架Stainless Steel Retainer Ring 不鏽鋼卡環Ribbon steel retainer 浪型鋼制保持架;浪形鋼制保持架Actuator pivot retainer stainless steel 特點 返回 steel retainer