tender for providing iron cover slab to drain at kettipaladain adigaratty town panchayat; 1 supplying and fixing of m.s. l angles ofapproved design fortruss using necessary mild steel flats for inner and outermembers which should be fixed totruss inclusive of priming coat of best approved quality red oxide primer etc., complete complying with standard specifications. 2 plain cement concrete 1:2:4 mix (one part cement, two part sand and four part of aggrigate) using 20mm size iss hbg metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc. complete. complying with std. specifications.