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ABOUT LFDY
  • Langfang DingYang is a large supplier and manufacture in China that specialized in producing all kinds of flanges and pipe fittings.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.

    As an experienced exporting company, Langfang Ding Yang has been export for almost 10 years. We have clients all over the world and our products and service have been approved by many of our clients. We offer more competitive price to our clients to help them benefit more in the industrial market.​​​​​​​

    Langfang Ding Yang insist on our company policy “Top quality, Sincere cooperation, Consistent improvement, Pursuing perfect” and “Mutual benefit, Mutual Success”. We use the quality to occupy the market, use our sincerity to serve our customers.
WHAT WE DO?

Langfang DingYang 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/T Carbon, alloy and stainless steel flanges including ANISI, ASME, JIS, DIN, NPT etc. Carbon and Stainless steel valves including ANISI, API, JIS, DIN, NPT. We have the experienced and professional technical team, the advanced production equipments, the predominant area advantages, and the convenient transportations. We will do our best to satisfy our customers in all aspects.
LASTEST NEWS
We have an excellent technical team, which can be designed according to customers requirements.

NEWS

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  • Application and development of alloy steel flange

    Flange is also called flange plate or flange. Flange is a part connected between pipes, which is used for the connection between the ends of pipes. It is also used for the connection between the importer and exporter of equipment and for the connection between two equipment. In practical use, the tr

  • Polishing method of dual phase steel flange

    Polishing method of dual phase steel flange1. There are four polishing methods of dual phase steel flange: manual, mechanical, chemical and electrochemical. Polishing can improve the corrosion resistance and decoration of the flange. The existing electrolytic polishing solution for stainless steel s

  • What are the mechanical properties of dual phase steel flange

    The existence of dual phase steel flange restricts the growth of grains between dual phases. Dual phase stainless steel maintains fine grains, and the total area of grain boundary of dual phase stainless steel is larger than that of single-phase steel. Therefore, dual phase stainless steel has high

  • Anti corrosion method of pipeline flange

    I. paint maintenance solutionsMaintenance paint is a hard film that can be directly bonded to the substrate, generally epoxy or polyurethane coatings. There are many edges and edges in the China flange, and the edge will become thinner with the service time and the action of corrosive medium. It is

OUR PARTNERS

We hold "hundred percent customers' satisfaction" as our goal, providing timely and efficient after-sales services to our customers.​​​​​​​
  • 20+ Years Experience
  • Fast Delivery
  • Wholesale Price
  • ISO9001 Certification
We have an excellent technical team, our products in quality and quantity will make you satisfied, welcome to buy
  • 86-316-5120812
  • Mon-Sat: 09:00AM - 05:00PM
  • Room1-3-908 Zijincheng Commercial Building, Guangyang District, Langfang City,Hebei Province,China
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