high tensile steel only come from Baosteel
large span and widen indoor space in height
polyurethane heat insulating material

Steel arch roof with polyurethane have below strong points:

1.anti-heat feature.

2. no beam and furlin design increase view field indoor.

3. connected by seaming and whipstitch without using bolts and rivets

4.the whole structure is removable ,with good waterproof quality and never leak.