Zhejiang Gross Seamless Steel Tube Co., Ltd (hereafter in short as ZG) is invested by Zhejiang Jindun Holding Group Co.,Ltd with an annual production of 250000 tons and a fixed asset of USD 200 million. As one of the largest manufacutures of seamless steel tubes&pipes in China or even throughout the world, ZG covers an area of 160,000 square meters with a factory area of 130000 squre meters and has a workforce of more than 600 including over 200 professional technicians senior engineers, senior non-destructive testing staffs. ZG is competent in producing high-quality seamless pipes with diameter 390~1200mm, wall thickness 16~200mm and length 4~12 meters that are mainly used in energy fields of nuclear and thermal power stations, petroleum and petrochemical industry, high-pressure gas cylinder, military industry, mechanical sructure and so on. Our stainless seamless steel tubes are the advanced productions in China.