Reliable Pipes And Tubes Ltd manufactures Stainless Steel ERW Pipes. Reliable Pipes and Tubes Ltd is an ISO 9001:2008 certified company. Stainless Steel ERW Pipes is carried out on sophisticated tube mills where the cold roll stainless steel strips are welded into tubes in a fully automatic precious process. The process being with the slitting of coils into strips of required width, based on the diameter of the tubes to be formed. The slitted strips are passed through a series of rollers where it is continuously formed and welded into high precision, fully automated process of TIG welding without any addition of filler metal.