steel trusses purlins

beams, a kind of economical and efficient cross-section material with better arrangement of sectional area and reasonable proportion between strength and weight, is widely used in industrial plants, civil buildings, bridges, electrified brackets of railway and other building projects, due to its advantages in bending ability, simple construction, saving cost and light weight.   With abundant technical strength and advanced equipments, we have been undertaking kinds of design and manufacture of uniform and variable cross-section beams.