Tewelding Engineers offers Leak Proof Welding Torch. Tewelding Engineers is an ISO 9001:2000 awarded company. Tewelding Engineers offers diverse types of welding and cutting equipment and accessories. Leak Proof Welding Torch is can be used for brazing, heating and welding with suitable tips. The torch body and torch legs are forged from extruded brass rod. Its slim designs and light weight gives the torch excellent Harding comparable to other convectional torches.