CNG ( Hebei DIKAI Piping Products Co., Ltd ) was founded in 2002, is a professional grooved coupling fitting production enterprise, is one of the earliest development of grooved fittings enterprises in China. Till now, CNG grooved products of piping system are always in a leading position in the industry.  Experience precision and reliability with CNG's full line of Grooved Couplings, Grooved Fittings,Mechanical Tees, Grooved Flanges, and Other Color Grooved Fittings. Trust CNG for all your piping needs.

CNG ( DIKAI )Piping Systems are found worldwide in multiple applications and span many fields. Such as commercial piping system,industrial process system, utility piping system, petrochemical and metallurgy industries, coal and mineral mining operations, water and wastewater plants and facilities, etc. Our grooved fittings and couplings covers fire-hydrant & sprinkler system, water spray & water mist system and foam & gas system. For all systems, CNG ( DIKAI ) offers unique solution for each individual practice and actual problems.