WNRF Flange Welding Neck Flange SORF Flange Blind flange Studding Outlets
Since 1999,DHDZ forgings (Shanxi Donghuang Wind Power Flange Manufacturing Co.,Ltd) designs and manufactures flanges & forgings that deliver maximum efficiency, durability and reliability for the Oil & Gas industry as well as a wide range of industrial applications, including machinery manufacturing, petrochemicals, and Pipelines and Marine forging industry.
We've been founding new department of finishing machining with the leading technology to meet the different customers. We are proud to be a part of forging business, which delivers qualified forgings & flanges to customers the world over.
Our success rests on building trusted, long-term client relationships, and focus on delivering first class products, cost control and the service concept of empathy, building on our track record in core markets to win new business and strengthen our position.
In 2010, DHDZ moved its marketing center to Shanghai, the largest city in China. Relying on the advantages of Shanghai as an international metropolis in shipping, finance, science and innovation, talent and other aspects, DHDZ is committed to providing global customers with faster corresponding speed, higher product quality, better price and better service!
Name: | WN Flange BL Flange SO flange |
Raw material: | carbon/stainless/alloy steel |
Standard: | ASME;ANSI/DIN;BS;JIS;EN;... |
Size: | 0.25"~56"~max. |
Type: | WN;SO;BL;SW;PL;THRD... |
Facing: | RF;RTJ;FF;FM;M;T;G;... |
Pressure: | Standard |
Quality Control:
1. Inspecting apparatus and equipment are tested and supervised by relevant national departments on a regular basis.
2. We conduct physical and chemical inspection to raw materials.
3. All links in production are examined and properly reported.
4. We conduct loading examination to the packaging which should be applicable to rust prevention and shipment.
5. We carry out random inspection to products in the storage.
6. Each step of inspection is recorded in both image and written form.





