短语词组短语threaded hanger rod 螺纹吊杆threaded d rod 螺纹杆screw stem threaded rod 螺杆screw threaded rod 螺纹杆NYLON THREADED ROD 螺杆future threaded rod design 未来螺纹杆的设计Steel Threaded Rod 钢制螺杆Threaded Rod & Screw 丝干及螺丝配件 返回 threaded rod