1. Steel grating is made of bearing bar and cross bar,  placed horizonatally anvertically, and at an equal pitch       apart, by welding with 200-ton hydraulic resistance automatic automatic welding equipment, then                       cutting,punching and banding ends.
 
2.Type of bearing bar:
serrated bearing bar, plain bearing bar,I type bearing bar
Specifications                                                                                                                                                  
 
1) GT type 
This kind of trench drain grating cover  is used on ordinary side trench and transverse trench.
 
 
2) GU type
 This kind of trench drain grating cover can be directly built over U type trench without a frame or support.
 
 
3) GM type
 This kind of drainage pit cover is widely used in streets and factories.
 
 
 Trench drain grating cover introduction                                                                     
 

 
4.our company profile

1.Own independent three press-welded steel grating machine and we have our own biggest galvanization product line in local market for 20 years experience.
2.profession design and drawing teams customize based on customers'requirement 

3.ISO9001 Certificate 

4.Located in Anping wire mesh base Hebei province,near from Beijing airport,Tianjin sea Port! 5.Now we adopted automatic bending machine,automatic robot welding machine,the grating quality get more perfect and price more competitive!