Zhejiang Changgang Technology Co., Ltd. is located in poetic wonderland--Wenzhou, a famous historical and cultural city in China. The company can produce over 45000 tons in the recent year with a registered capital of 10 million yuan. Changgang is one of the largest domestic stainless steel pipe manufacturer in China. It is committed to pipe research, development, manufacturing, processing, material promotion and sales. The products cover stainless steel seamless pipe, stainless steel welded pipe, stainless steel heat exchange pipe, stainless steel boiler pipe, stainless steel U-shaped pipe, etc.

The production base of the company is located in Songyang,Lishui(Zhejiang Julong Special Materials Group Co.,Ltd.).The company has automatic production equipment and professional production workshop. We continue to make technological breakthroughs and have introduced domestic and foreign high-end equipment. Now the company has 12 LG-60-H cold rolling unit production lines, 70 LG-30-H cold rolling unit production lines, 5 cold drawing machines, aiming to build an industry-leading steel pipe production line. We continue to strengthen self-requirement, accelerate the construction of production automation and workshop standardization management, which greatly ensure the product quality, improve the production efficiency and bring customers excellent performance of cost-effective products.

In order to establish a high-standard testing center in the industry, the company has invested millions of RMB to introduce the international leading testing equipment, including direct reading spectrometer imported from Germany, PMI imported from USA, automatic UT flaw detection unit, hydraulic testing unit, universal material testing machine, temperature zone impact testing equipment). In accordance with the strict testing standards, we carry out a full range of experimental testing of the products, to ensure the quality of the company's products.

The company can produce pipes according to GB, GB / T, ASTM / ASME, JIS, DIN, GOST, SH, HG, DL and other standards. Products are widely used in petroleum, chemical industry, shipbuilding, medicine, Marine engineering, boiler heat exchanger, aerospace, environmental protection, machinery, smelting, water conservancy, construction, food, new energy equipment and other industries. Products are welcomed and favored by customers from all over the world.

Changgang is committed to producing high-quality, low-cost, energy-saving and environmental-friendly stainless steel products, providing global customers with excellent products and perfect service system. With continuous reformation and forging ahead with determination, Changgang is willing to join hands with like-minded friends in the world to make our dreams come true, and thus contributing to the society.