DX

Manually operated metal valves; Metal valves not being parts of machines; Valves of metal other than parts of machines including those from alloy steel and titanium; Valves of metal, other than parts of machines

Valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines; Control valves for regulating the flow of gases and liquids; Pressure relief valves for protecting pumps; Safety valves for flow shutoff in well construction