API angle valve Manufacturer of Angle valves, Ball valves, Gas valves, Needle valves, ... valves, needle valves, check valves, self saddle valves, stop valves, gate valves and so on2. Raw Material: Brass 58-3A, C37700 ... , or Nickel plated, or Chrome plated.6. Certification: ISO9001:2000. API Brass angle valve