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.shape 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                                                                     
 

6.our company profile

Hebei Jiuwang Metal Wire Mesh Co.,Ltd.(original Anping County Jintai Metal Mesh Co.,Ltd.).Established in 1992,our company is a manufacturer of large steel structure and steel gratings,integrating development,production and distribution.The company register capital is 10,080,000 Yuan,and take an area of 34,680 square meters.In 2003,we have got the ISO9001:2000 certification by BQR.