Langfang Dingyang Flange Pipe Fitting Co.,Ltd is one of the leading companies dealing in exporting pipe fittings, flanges and tubes etc. Our product range includes:Carbon, alloy and stainless steel pipes in various grades including PI5CT,API5L,ASTM, ISO,JIS,ST, DIN, GB/TCarbon, alloy and stainless steel fittings and flanges including ANISI, ASME, JIS, DIN, NPT etc.Carbon and Stainless steel valves including ANISI, API, JIS, DIN, NPT.


We hold "hundred percent customers' satisfaction" as our goal, providing timely and efficient after-sales services to our customers.

More than ten years’ business partner and friend! Very satisfied with your high-quality flanges and pipe fitting, you can always with high quanlity and low price , all can meet our requirement. ! Excellent!

just like your saying: LFDY- low price ,first quality ,delivery soon,yes we can . All come ture ! you have keep your words . so glad to be partner with you and your company .

erveytime you reply me very quickly no matter any news and any time . you and your workers are Professional , Responsible, Efficient, Trustworthy.

Tks for your friendly support last year ,your company give me so large discount and good payment term .so I can win in my local market . I am sure that we will have much more order of flange and pipe fitting


  • Performance of carbon steel flanges

    Carbon steel flanges are widely used in various industries due to their high performance and durability. The performance of carbon steel flanges is determined by several ...

  • Carbon Steel Flange Industrial Structure

    The welding flange is usually made of forgings or forged rolling process. In industrial pipelines, flange connections are widely used. But open section elbow bend pipe al...

  • How to Mark Large Stainless Steel Flange?

    The corrosion resistance of stainless steel decreases with the increase of carbon content, so most of the stainless steel has a lower carbon content, a maximum of less th...

  • How to Ensure Stainless Steel Weld Neck Flange Material?

    When talking about stainless steel weld neck flange How to ensure the material, in accordance with most of the carbon steel flange manufacturers for many years of product...



we have our own pipe fitting factory since 1998 ,which covers 100 acres. In 1998, we invested and set up a new flange factory. Up to now, we have a complete production system, and become a professional and competitive group in this field.


we have our own pipe fitting factory since 1998 ,which covers 100 acres. In 1998, we invested and set up a new flange factory.