... and explosive-proof types. It is wildly used for liquid & gas measuring and control in national security, chemical, petroleum, pharmaceutical, ... 1.6, 2.5, 4.0, 6.4MPa, according to GB/T17241.6-68(Other special order available, please quote individually ... Product type: LZZ: standard;LZD: data transmissible.Measuring range Bore(mm)Measuring range(20°C)Maximum pressure loss(kpa)Anti-CorrosionStandardAir(0 ...