Ratnadeep Metal and Tubes Ltd. Supply Stainless Steel Welded Tubes or Pipes. Ratnadeep Metal and Tubes Ltd. Is an ISO 9001 certified company. The company manufactures and supplies Stainless Steel [Seamless and Welded], Carbon Steel and Alloy Steel Tubes and Pipes. The Stainless Steel Welded Tubes or Pipes has Outer Diameter of 6.35mm - 50.8mm. The Stainless Steel Welded Tubes or Pipes has Inner Diameter of 0.5mm - 2.77mm. The Stainless Steel Welded Tubes or Pipes has maximum length upto 30 Metres.