About our company

Our factoryShijiazhuang Donghuan malleable iron Castings Co., ltd, as a pipe fittingsmanufacturer, is professional to produce the international pipeline fittings.

We produce thegalvanized and black malleable iron pipe fittings with SDH brand that can bedivided in three standards, American standard, Din standard and Britishstandard .The sizes are from 1/8”to 6”, and the fittings arewidely used in various pipelines to convey gas, water, oil, and so on .We haveestablished the quality system conforming to IS0 9001:2008 and have had thecertification of CRN in Canada, European of CE and Turkey of TSE. The brand ofSDH have been registered in many countries by us.

We also producemany other casting products, such as camlock quick couplings, clamps andcouplings. We can also manufacture other cast parts according to customers'drawings or samples.

Our factoryoccupies 12000 m2area, withthe annual output more than 4000 metric tons .our factory has the staff morethan 200 people, and the professional technician people are more than 40people. Our factory is the first to use the electric stove for castings andelectric facility in annealing and galvanizing process, which has no pollutionand easy to control the material composition.

With advancedtechnology and equipment, the products are of excellent material, in goodfinish with well mechanical property and tightness and good interchangeabilitywhich make it easy to be assembled.

The products gothrough casting, annealing, shot blasting, galvanizing, threading, air pressuretesting, thread inspection and final package procedure .The goods are mostlysold to Europe, South and North America andMid-east countries and get good fame from our customers .

We sincerely hopeto establish long and friendly relationship with you!

We mainly produce American Standard, British standard and German Standard malleable iron and stainless steel pipe fittings, pipe clamp fittings, double bolt clamps and couplings, KC nipples and sockets, and camlock quick couplings.