1) Material: 
Mild Steel (Low Carbon Steel ASTM A36 or Q235) or Stainless Steel 304 or 316

2) Bearing Bar (Load Bar) Specifications (mm): 
Plain type and Serrated type is 20 x 3 to 100 x 10;

I-section type is 25/50 x 5 x 3.0  , 50/75 x 7 x 4

3) Bearing Bar Pitch (center to center):

Common Size is 30mm,40mm,60mm, Also can make as customers' requirements

4) Cross Bar Pitch (center to center): 
50mm,100mm are recommended, also be according to client's requirement

5) Surface Treatment: 
Untreated, Painting, Hot dip Galvanizing or Galvanized

6)Characteristics

1>High strength and light structure

2>Powerful anti-corrosion,durable and long working life

3>Beautiful appearance,bright surface

4>No dirt-rain-snow deposit,automatic cleaning,easy maintenance

5>Good ventilation,day-lighting,heat-dispersing,resistant to sliding and explosion.

6>Easy installation and disassembly

7)Application

They are widely used for making paltform,trestles,covers ladders and fencing in many fields such as petroleum and chemical industry,electric power,water supply,sweat treatment,ship building,parking lots,city construction,environmental engineering.