... 273mm, thickness 0.8 to 30mm. Seamless stainless steel pipe is widely use in boiler industry, heat exchanger industry; ... steel pipe mainly used for petroleum refinery, fine chemical engineering, ocean engineering, shipbuilding and others; Thick wall and large diameter types ... for concentrated & dilute nitric acid plant, 316MOD Urea grade pipe mainly use for MOD industry. We are able to fabricate ...