ADVANCED VALVE TECHNOLOGIES

Manually operated metal valves and manually operated metal line-stopping valves not being parts of machines which stop the flow of water or gas in water pipes, gas pipes, and petro-chemical pipes used for industrial purposes; valve systems comprised of manually operated metal valves

Tapping machines and electric drills used to cut an access in a pipe; hydraulic and pneumatic cutting and drilling equipment used to cut an access in a pipe

Installation, maintenance and repair of metal valves and line-stopping valves