As a professional manufacturer of steel products , we have invested five factories throughout China£¬which are Hunan Great Steel Pipe Co., Ltd.,Hunan Longshengda Steel Pipe Co.,Ltd., Hebei Litonglian Seamless Steel Pipe Co., Ltd., Liaoyang Xingde Large Steel Pipe Plant and Tianjin Gerui Oil Pipe Co., Ltd..Our main products are seamless steel pipes, ERW, SSAW, LSAW pipes with production capacity of 2,000,000MT per year.