在线观看黄色电影的网站有哪些|久99久久日韩无码国产一区|日韩插逼无码电影|日本免费看黄在线看欧美伊人|永久免费无码遮挡视频|国产六十九区三页|成人国产美女精品|成人免费视频黄片网站|美欧亚州Aⅴ电影|成人三级片免费看

What's New???
No Information.
Contact Us???
Your Position: Home > About

  Ningbo Sanding Steel Pipe Engineering Co., Ltd. is located in Dagang Industrial City, Ningbo Economic Development Zone. It relies on Beilun Port, a famous deep-water port, and connects Hangzhou-Yong Expressway with convenient transportation. The company mainly produces large and medium diameter spiral submerged arc welded steel pipes. It has the largest spiral welded pipe unit in China at present. It can realize mobile production. The annual production capacity of steel pipes reaches 200,000 tons. The diameter of pipes is 400-3050 mm, and the wall thickness is delta 5-25 mm. The company adopts international ISO9000 quality system, stresses "dedication, cooperation, rigorousness and efficiency" and attaches importance to talents, striving to create first-class management, first-class benefits. Quality Policy: Production of high-quality steel pipes, provision of excellent services, increase customer satisfaction, constantly improve the quality management system, the pursuit of industry leadership.