Stellar Pipe & Tube Group has five subordinated enterprises, namely Zhejiang Tsingshan Steel Pipe Co., Ltd., Zhejiang Stellar Steel Pipe Co., Ltd., Wenzhou Ruipu Auto Door & Window Co., Ltd., Wenzhou Aoke Beer Co., Ltd. and Wenzhou Stellar Pipe & Tube Trade Co., Ltd. The Group possesses assets of CNY 250,000,000, annual output value nearly CNY 1,000,000,000, over 1,500 employees among which more than 10 % are with medium and high level professional titles. Its major products are stainless steel seamless pipes. To ensure leading position of product quality in domestic and foreign stainless steel pipe industry, the Group has brought in German-exported direct reading spectrometer of Model OBLFGS2000, Ultrasonic Defect detecting system and eddy current testing machine, WE300A universal material testing unit, metallographic microscope, intergranular corrosion testing device, hydrostatic testing device, etc. which enable our products to be applied in fields such as petroleum, chemical industry, machinery, electric power, automobile, shipbuilding, aviation and spacecraft, food, pharmacy, decoration, etc.The Group has successively passed ISO9001:2000 by LLOYD , got approval from DNV, BV, TUV,CCS, ABS,RINA, and acquired a series of certifications such as PED 97/23/CE/1997, third-grade metering, the People?s Republic of China on the Administration of Production License for Industrial Products, provincial enterprise standard management system.