欧美午夜精品人妻久久久久,刑警娇妻穿着乳环被调教 ,夜夜操亚洲女人,一级a做片免费久久无码

Stage lighting truss steel

1. Assembly
Steel Framework:
Component: H-Column, H-Beam & C/Z-Purlin
Connection of steel structure method: Welding, Bolted
Surface treatment: Painting, Galvanized
Roof &Wall System Sheet: colored steel tiles or colored steel sandwich panel per request
Doors: Roller or Common, as request

2. Quality standard
Certification: ISO9001:2000, SGS Standard
Code for design of steel structure: GB 50017-2003
Technical code of cold-formed thin-wall steel structure: GB50018-2002
Load code for the design of building structures: GB 50009-2006
Construction quality acceptance of steel: GB50205-2001
Code for design, construction and acceptance of high strength for steel structure, JGJ82-91
Technical specification for welding of steel structure building: JGJ 81-2002
Technical specification for steel Structures of tall buildings: (JGJ99-98)
Specifications for processing of steel structure: DBJ 08-216-1995
Specifications for design and construction of steel panel: YBJ 216-88

3. Material grade and performance of steel
Carbon structural steel: Q235, Q345, etc.
High-strength low-alloy structural steel
High quality carbon structural steel and alloy structural steel
Special purpose steel

4. The characteristics of steel
Light weight steel structure
Environmental protection (recyclable steel)
Higher reliability of steel work
Strong anti-vibration (earthquake)
Higher degree of industrialization
Quick to be assembled accurately
Larger interior space
Poor fire-resistant steel

5. Main equipment
10 burner CNC cutting machine
Gantry submerged arc welding machine
Electro slag welding machine
8-head shot blasting machine
Corrugated sheet molding machine
C-purlin production line
Punching machine
Drilling Machine
Forging machine
Assembling machine

6. Market
SBS steel structure reaches all over China market and has been exported to Australia, Africa, the Middle East, Europe, North America, etc.