about usabout us

Hebei DIKAI Piping Products Co., Ltd., (CNG) was established in 2002 and covers area more than 100,000 square meters ,CNG is the pioneer of grooved fittings in China and has been the most professional manufacturer after 20 years of development, The foundry is equipped with 4 automatic casting lines, 40 sets of CNC machines, 4 painting lines ,2 half automatic assembling lines and one perfect test center, Which make sure the products quality are reliable and stable.


Featured productsFeatured products

  • Our mission

    Our mission is to meet the needs of fire fighting by providing quality and innovation. CNG stocks a wide selection of “Grooved” style fittings. Cut Groove and Roll Groove fittings are a method of joining pipe and fittings together using couplings and gaskets. They are easy to install.We stock cou...

  • Introduction of grooved fittings

    Grooved piping system is reliable and is faster to install than welding, threading or flanging, resulting in lowest installed cost. It can be adopted to suit standard pipe with cut grooves or standard and light wall pipe with rolled grooves. Couplings perform equally well under pressure and vacuu...