GB9948 petroleum cracking tube

China standard GB5310,GB3087, GB6479 used in boiler  high pressure fertilizer pipe, heat exchanger, condenser ,oil cracking Pipes

  • Brand: JG
  • Name:: GB9948 petroleum cracking tube
  • Original: China

China standard GB5310,GB3087, GB6479 used in boiler  high pressure fertilizer pipe, heat exchanger, condenser ,oil cracking Pipes