Color steel arched roof used in building hangar, compared with traditional steel construction, it have below strong points:

1.widen space in height, due to no beam and purlin design, wall and roof are integrative.
2. connected by seaming and whipstitch without using bolts and rivets, so have good waterproof quality and never leak,
3.resistant snow at 10cm at least.
4.roof wind pressure can be ignored.
5. more 40years service life, 10years of guarantee period.