Welmech Engineering Company [Pvt.] Ltd. Offers Electrical, LDO or Gas Fired Bell Type Furnace with a capacity up to 50 Tons. Welmech Engineering Company [Pvt.] Ltd. Is an ISO 9001 certified company. This machine finds applications in Bright Annealing or Spherodize Annealing, Normalizing and in Partial Vacuum. The salient features of Electrical, LDO or Gas Fired Bell Type Furnace with a capacity up to 50 Tons are as follows: