Hunan Shinestar Steel Group(HSSG) was founded in 1978 and our enterprise is the predecessor of branch of China's oil and gas pipeline science research institute. as a professional manufacturer of steel products , we have invested five factories throughout China, Hunan Great Steel Pipe Co.,Ltd is the top 1 and biggest subsidiary in our group with 278 staffs ( eldest company). Contact me: ellie()hnssd()com