The latest Corrosion-resistant Control Valve, resist the corrosion of all chemistries.flow control valve,pneumatic control valve 100R Series is our latest Corrosion-resistant ... ,chemical,power plants,metallurgy and so on. chemistries.flow control valve,pneumatic control valve,control valveStandard SpecificationsSeries :100RBody size:3/4"~8"(DN20 ...