Zhejiang Gross Seamless Steel Tube Co., Ltd

Zhejiang Gross Seamless Steel Tube Co., Ltd, located at Xiaoyue Industrial Development Zone Shangyu City within eastern Zhejiang economic circle, covers an area of 160, 000 square meters with fixed assets of 1.2billon RMB, employees more than 800, including 200 and more professional technicians, which include senior engineer, senior staff for non-destructive testing etc. The annual production capacity of special seamless steel tubes will be 250, 000 tons.

As a professional manufacturer, we supply high-quality seamless tube and pipe with Diameter 350~1200mm, wall thickness 16~200mm, length 4~12mm, mainly used in energy fields of nuclear power and thermal power stations, petroleum and petrochemicals. Individual weight of a steel pipe could be 25tons. The range of the pipes is from high pressure boiler seamless pipes, seamless pipes for petroleum & petrochemicals, high-pressure gas cylinder pipes, pipes for military industry, to pipes for alloy structures, etc. It has met the demand for large caliber, thick wall pipes of domestic energy equipments fields as well as other large equipments, to achieve localization and import substitution.

The company has adopted a pioneering innovation in the combination of crafts, of punching - pulling, skew rolling, reeling and sizing process. Technology and facilities are advanced and production process is optimized. The advanced production facilities are used in ZG, such as hot extrusion sideling rolling equipment, all sorts of industry furnaces, hydraulic press machines, cone mill, reeling machine, sizing mill, cutting machine, straightening machine, etc, in order to improve product quality, meet demand of market, enhance competitive capacity.

A comprehensive quality assurance system is carried out in the company, with more than 3000 square meters physical and chemical testing center, advanced testing equipments of hydrostatic pressure test machine, non-destructive test machine (a combined machine of eddy current test and ultrasonic test, hydraulic universal test machine, read-able spectrum instrument for Lab, impact testing machine, material microscopy by Carl Zeiss, high temperature lasting and creep testing machine, electronic high temperature creep relaxation test machines, carbon & surfur analyzer, high temperature lasting test. In which case, ZG enjoys comprehensive research quality testing methods and equipments.

Facing new development chances, ZG deploys the employing mechanisms of "People oriented, not stick to one pattern" and the quality policy of "Quality first, sustainable improvement, and customer satisfaction" and the spirit of "Be honest and Co-development", to establish a specialized large caliber and thick wall seamless steel pipe R & D and production base with ahead of domestic level and the first class abilities in the world. It aims to get stronger by practical innovation.

ZG is willing to cooperate sincerely with more friends at home and abroad to achieve win-win situation and development!