The most professional flange manufacturer.
Product Description:
Raw materials: Our products are made of Q235B purchased from big state-owned steel factories. So our raw material is stable with assured quality.
Quality control: We we will conduct a series of tests on materials and products to ensure that the standards compliance.
Experience: More than 10 years manufacturing history.
Applicable industry: Our products are widely used in chemical, pertrochemical, food, water, natural gas pipelines and other industries.
Carbon steel flange's advantage:
1. China's largest production base of flange blank.
2. China's patented invention enterprise of hot rolled machine and hot rolled process of flat welding flange.
3. Hot rolling and hot coil can be finished at one time, stable quality.
4. Multi-turn coil, fast speed, high efficiency.
5. High process precision, good flatness, high yield.
6. According to customer demand, adjust its specification.
Chang Tong Technology Co., Ltd. Established in September 2003, is situated in Industrial Demonstration Park of Gongyi, Zhengzhou city. The company mainly produces automobile leaf spring, various specification spring flat steel, brake valve, flange (blank) and pipeline flange (blank).
The company prides itself on its advanced techniques, excellent equipment, scientific management and powerful technology. The quality of its products has passed the standards of QCn29035-91 and GB1222-84, and has been attested by the international quality system ISO9001: 2000. It has established a set of systematical sales network, and set up many branch companies in dozens of cities all over the country, such as Zhengzhou, Chengdu, Liuzhou, Guiyang, Zunyi, Shuicheng, Xi'an, Xining, Changsha, Yinchuan, Jishou, Ge'emu, as well as the Inner Mongolia Autonomous Region. Its products sell well nationwide throughout the country and exported to many countries and regions, for instance, Southeastern Asia, DPRK and India, and enjoy great popularity among the customers.
