... 1/2", 3/4", 1", 1-1/4", 1-1/2" Body: forging O-ring: NBR Item: hose couplingMaterial: brassSize: 1/2", 3/4", 1", 1-1/4", 1-1/2" ... and research, manufacture, sale and trade into a whole. The major products are valves, pineline ... 2000 in 2002. The complete product quality control system, stand flow work ensures fine ... make inquiry into us, negotiate business with us and place orders to us. Our company ...