Ball valve is a valve that opens by turning a handle attached to a bal...
Ball valve is a valve that opens by turning a handle attached to a bal...
Features: 1) With new cast iron body and new concept of flow mechanism &n...
China Galaxy Machinery Manufacture Co., Ltd. which has nearly 20 years industrial&nbs...
China Galaxy Machinery Manufacture Co., Ltd. which has nearly 20 years industrial&nbs...
