The surface has anti-scratch protective film, the scale is clearly visible, never fade, widely used in gas welding, argon arc welding, cutting, chemical industry and cutting. other processes. The whole structure is compact and perfect, and the seal is good, the switch large handle and the non-slip design, more economical. Each regulator is subjected to a rigorous inspection in the factory to ensure that every product is a qualified, safe and reliable product. The valve body is made of zinc alloy, the inlet pipe has a sintered brass filter, a stainless steel cover. oxygen, gas outlet nozzle, zinc alloy casting, more firm and durable. The regulator is an essential accessory of the pneumatic control valve. Its main function is to reduce the original pressure and stabilize it to a fixed value so that the regulating valve can obtain a smaller stable air source for regulation.