lisa@htpipe.com Zhengzhou Huitong Pipe Fittings Co.,Ltd.,  established in 1978, is mainly engaged in exporting steel pipe and pipe fittings for Huitong Group. After many years' development and innovation since our establishment,we are more and more professional in technical service and can manufacure products with all kinds of material, shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc, we have gained more than product patent, and hundreds of technology patent.