Hengyang Steel Tube, a subsidiary of Hunan Valin Iron & Steel Group Co., Ltd., large-scale seamless steel tube & pipe manufacturer in the world has received certification from China Classification Society for larger-size products.
The new certification will be used for the company's steel tube specifications, including maximum outside diameter increased from 365mm to 720mmm and maximum wall thickness rose from 42mm to 65mm.
The company expected that the new certification will help Hengyang Steel Tube to enter into shipbuilding steel tube market.