Profile: Trio Steel & Engineering LLP is an exporter and supplier of carbon steel, alloy steel & stainless steel pipes and pipe fitting materials. Our products are widely used in oil & gas, onshore, and offshore industries. We are an ISO 9001:2008 certified company. Our steel carbon pipes are widely used for various industrial applications including petroleum, machine building, oil & gas, petrochemical, automobile, and chemical industries. Our flange is a plate or ring to form a rim at the end of a pipe when fastened to the pipe for strength or for attachment to another object.