Ningbo Hengfa Steel Tube Ltd. Co. is a company specializing in various kinds of seamless steel tubes which is located, in the town of Yuyao in the east of Zhejiang, in the economic development of Lianghui, Yuyao.  The transportation to our company is very convenient and the economic situation is very fine. There is a steel rolling sub-factory in our company, whose capital is about RMB 85, 000, 000 and the area is 53300square meters. There are about 400 on-the-job workers, among them there are 35 professional skilled workers, 12 advanced management people. With the history of more than ten years, we have much experience in seamless steel tubes and advanced technique. We introduced the manufacture techniques and manufacture equipments of the home into our factory, now there is a set of ?????????????????????6 heat steel rolling machine, a set of ?????????????????????0 heat steel rolling machine, 12 hard-drawn lines, more than 26 lines of steel rolling, a continue anneal stove and an automated stove. At present, our factory have produced all kinds of hard-drawn steel rolling and seamless steel rolling such as outer diameter 6~120mm, depth of cliff is 0.5~12mm. we can produce them according to the standard of GB, ASTM, JIS and DIN and so on. The annual output is more than 40, 000 tons and the production value is RMB3, 400, 000, 000. In order to keep the excellent quality of the products, we have established a full set of quality guarantee system and executed in strict accordance with it, at the same time, we fit out many advanced tested equipments, such as the chemical analysis equipment, metal microscope, omnipotence test-machines, impact test-machines and lossless test machines. We enjoy good popularity due to the close quality control and complete test means.