rate contract for purchase of different type of m.s, superbond welding electrodes. . , rate contract for purchase of different type of diffeent type of m.s. superbond type m.s., superbond welding electrodes. , m.s. welding electrode size 3.15 mm.isi make (as per requirement)ador/nexa/maruti make 6013 size , m.s. welding electrode sizes 4.00 mm. isi make and welding material (as per requirement)ador/nexa/maruti make 6013 size , m.s. welding electrode sizes 2.50 mm. isi make and welding material (as per requirement)ador/nexa/maruti make 6013 size , welding electrode make super bond- s and s.s. 2.50 mm. (ador make) , welding electrode make super bond- s and s.s 3.15 mm. (ador make) , welding electrode make super bond- s and s.s 4.00 mm. (ador make)