<p>IB-W: Providing and making specified welding conforming to AWS D1.4 by electric arc welding for construction of Iron Bridge with highly oxidized electrodes making the points prominent and accepted by the Engineer-in-charge. The cost of all materials, labour, tools and plants, electricity and all equipment is included in this unit rate. Welding shall be carried out under the continuous direction of an experienced and competent superisor.<br>[Direct type Lap-welded splice over one side of contact by welding of minimum length not less than 10 times of section thickness unless otherwise mentioned in the working drawing]</p>