Complaint
| Type | GT type, GU type, GM type or customization |
| Material | Low Carbon Steel or Stainless Steel |
| Surface treatment | Hot-dip galvanizing or painted |
| Standard | YB/T4001.1-2007, ANSI/NAAMM, BS4592, AS1657 |
| Application | draining well, park and civil projects, etc |
1) GT type
This kind of trench cover is used on ordinary side trench and transverse trench.
2) GU type
This kind of trench 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.
Steel grating trench cover introduction
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.
| Type of bearing bar | 25x5x3,32x5x3,38x5x3,50x7x4,60x7x4,...75x7x4mm |
| Pitch of bearing bar | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60 mm |
| Pitch of cross bar | 38,50,76,100,101.6mm |
1. Factory with over 20 years experience
Established in 1992, Hebei Jiuwang Metel Wire Mesh Co.,Ltd(original Anping County Jintai Metal Mesh Co.,Ltd.)has been acknowledged as one of the largest professional steel grating manufacturers.
2. Well-equipped&quick delivery
Our equipment range from grating production to surface treament, such as hydraulic resistance automatic welding machine, grating disc cutting machine, strip slitting machine,pincking and galvanized equipment.We have 3 production lines to ensure delivery time.
3. Quality guarantee
Jiuwang is an ISO9001 registered company. All products are manufactured to the highest standards ISO9001 and also confirm to YB/T4001.1-2007 and ANSI/NAAMM(MBG531-88).
