In haihao,we keep a lot of stocks of steel pipes, fittings and flanges in high quality from 1/2 to 24 inches in our warehouse and our factories . All dimensions and materials are as per the China standard or international standard like ANSI , ASTM , ASME , JIS , DIN , EN , GOST etc.The main materials are carbon steel and stainless steel .

We prepare our stocks according to request of the distributor and the clients. If our clients told us their needs of next months. we can prepare the products in stock in advance. then we will provide the piping products to our clients or to the project site in time.