HEXAGON CAP NUTS

Shijiazhuang Donghuan malleable iron technology co.,ltd established in 1986,which is an enterprise manufacturing pipe fittings for more than 30 years.It is supplying Malleable iron fittings, Ductile iron fittings and Gray iron fittings.Main products：Malleable iron pipe fittings, Tube clamps, Air hose couplings, Double bolt clamps, conduit bodies, Camlock couplings, Carbon steel pipe nipples, hydraulic fittings.

 Products go through casting, annealing, shot blasting, galvanizing, threading, air pressure testing,thread inspection and final package procedure. Our factory are the first to use the electric stove for castings and electric facility in annealing and galvanizing process, besides we had improved the equipments ,used to yellow shells ,which has no pollution and easy to control the material composition. With advanced technology and equipment, the products are of excellent material, in good finish with well mechanical property and tightness and good interchangeability which make it easy to be assembled.