Looking For Strategic Distributors


If you are looking for a supplier who can offer high-quality products with stable prices and fast delivery, JianZhi is your best chioce.

Malleable Iron Pipe Fittings Manufacturers & Suppliers

Jianzhi ensures the safety of every pipeline system by strict and innovative quality control and aims to help all partners to prosper. As a standing member ofthe China Foundry Association, Jianzhi is dedicated to promoting the development of this industry.

High-quality Products

FM, UL, TUV, CE, SGS, etc.

Fast Delivery

Guaranteed < 35 days


Jianzhi Group is a professional supplier of malleable iron pipe fittings and grooved pipe fittings, serving the world pipeline system solutions since 1982. As a leading manufacturer, stockist and supplier, our technical team understands what you need. Therefore, we can help you find the most appropriate solutions for both your regular and specific requirements.


At Jianzhi, we manufacture and stock a lot of range of cast iron fittings products, more than 25000 tons. These products include malleable iron pipe fittings, grooved pipe fittings, cast iron flanges, in various standards: AMSE / DIN / BS / ISO / JIS / GOST / etc. And you can also choose different surface processing technology, for example, galvanized, black, painted, epoxy and so on.


We offer OEM customized services and have an annual production capacity of 400,000 tons at Jianzhi Group. Fast delivery is another feature. Fastest delivery record is 40 containers in 24 hours. Perfect after-sales service, if you have a question, you can consult at any time. Email: [email protected] Jianzhi’s good quality service won more customers from Japan, Canada, Middle East, South America, etc.


Flange Connection Design

Flange design refers to the design of flange connection, including three parts: gasket design, bolt (stud) design and flange body design. The most important method of flange design is the famous Waters method, GB150 is adopted this method. The main points of its...

Several Different Classification Methods of Pipe Fittings

By material:1, cast steel pipe fittings2, Cast iron pipe fittings3, Stainless steel pipe fittings4, plastic pipe fittings5, PVC pipe fittings6, rubber pipe fittings7, graphite pipe fittings8, forged steel pipe fittings9, PPR pipe fittings10, alloy pipe fittings11, PE...

Request a Quote