steel strutcure buildings
main steel frame: H steel I beam
purlin: C steel Z steel
support system: tie bar, bracing
door: sliding door or roller door
window: plastic steel window and aluminum alloy window
skylight sheet and ventilator as your needs
we are steel structure manufacture with our own workshops, welcome to visit.
you can add my whatsapp:+8613475841501 for further discuss.
http://www.twchinasteelstructure.com