Steel towers for telecom systems

we are urgently looking for a supplier or manufacturer for steel towers for telecom system purpose, so i appreciate you help to provide us with business line to discuss with them further details as we need to supply this products for our project asap.
kindly find the main specification required as follow:
1. design criteria
1. loading (general)
all design and loading shall be calculated in accordance with one of the following:-
1- bs:-
bs 8100: part1: 1986; bs 6399: part1: 1996; part2: