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发布日期:2021年12月06日

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Zhangjiakou High-Tech Steel Pipe Co., Ltd
Headquarters和老板在办公室小说 和老板在办公室小说 ,【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... 【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... ,a一级特毛大片欧洲 a一级特毛大片欧洲
TEL:0313-4086691    4086718
FAX:0313-4086691   4086718
 E-mail:xingguanbu@163.com
Website:/a>

和老板在办公室小说 和老板在办公室小说 ,【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... 【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... ,a一级特毛大片欧洲 a一级特毛大片欧洲
和老板在办公室小说 和老板在办公室小说 ,【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... 【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... ,a一级特毛大片欧洲 a一级特毛大片欧洲

Zhangjiakou High-Tech Steel Pipe Co., Ltd. is a corporation who specializes in manufacturing high strength ERW steel tubes for automobile, drilling and liquid service, as well as oil casing tubes for petroleum and natural gas. With the predecessor of Ningyuan Iron & Steel Works established in 1965, our company is one of the earliest manufacturers of electric-welded tubes for cardan shafts.

Our company has introduced advanced technology and sophisticated manufacturing equipment. For instance, the high-strength ERW steel pipes lines were imported from Germany; the high frequency induction heating apparatus were brought in from EFD and the threading & coupling lines were from America. The J55 and N80 tubing and casing manufactured by our company had filled the gap in high grade ERW oil casing tubes in domestic market. At present, the annual turnover of ERW pipes is 150.000 tons.

The art of state of technology has brought top-ranking quality. Our products have been certified under the ISO 9001:2000 international quality system certification and the API 5CT or API 5B certification. In November 2006, the ERW tubing and casing of the company had passed the test of Tubular Goods Research Center of CNPC. It is proved by the TGRC that the ERW oil casing tubes produced by our company have the advantages of high precision, great toughness, low cost and can resist crush and burst well.

Located in High-Tech Economy Development Zone of Zhangjiakou City, the company covers an area of 164082 square meters. Additionally, we own a 3.5km special railway line which helps the delivery of goods to customers rapidly and conveniently.

The company is committed to becoming an outstanding enterprise which is respected by the society, favored by the staff and honored by the public. As the company expands, we pay attention to carrying on the social responsibilities to benefit customers, employees, environment and the society. By continuous investment in environmental protection and innovation, we have optimized the manufacturing process and increased the utilization level of resources. High-Tech Steel Pipe Co., Ltd has been adhering to the spirit of innovation and high efficiency so as to provide comprehensive service and to meet customer needs. On the basis of mutual benefit and common development, we sincerely hope to establish long-term cooperation with customers from home and abroad.


和老板在办公室小说 和老板在办公室小说 ,【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... 【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... ,a一级特毛大片欧洲 a一级特毛大片欧洲
张家口海特钢管有限责任公司 版权所有
地  址:张家口市高新区马路东西街5号   [管理员入口]
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和老板在办公室小说 和老板在办公室小说 ,【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... 【校园DV系列】我的女友叫小薇【国语】【第一部】-微电影-高清完整... ,a一级特毛大片欧洲 a一级特毛大片欧洲