Shrenik Steel Corporation We are one of the leading stockist and suppliers of a wide range of M.S. ERW Black Pipes, G.I. Pipes, ERW Boiler Tubes, ERW Heat Exchanger Tubes, ERW Air Heater Tubes, Square & Rectangular Pipes & Tubes, ERW Corten Steel Air Heater Tubes. Most of our material is procured from world renowned tube mills. We supply material manufactured by Jindal Pipes, Welspun, Zenith, TATA, Surya and Asian Mills, to name a few. All material comes with Mill Test Certificates that specifically contain the batch no. and coil no. of the strips from which the pipes are manufactured.