The cetificate and the Patent
Regions Trading
Apr/15/2019
We have passed the ISO9001. ISO 14001 and get the patent from the Goverment for the galvanzied corrugated steel pipe and culvert
TAGS
Products
- Nestable corrugated steel pipe
- Culvert Pipe （Structural plate）
- Corrugated culvert pipe (corrugation68mmX13mm)
- Corrugated steel pipe (corrugation 125X25mm)
- Corrugated metal culvert(corrugation 200X55)
- Corrugated steel culvert (corrugation150X50mm)
- Corrugated metal pipe(corrugation 380X140mm)
- Corrugated steel culvert pipe (corrugation 300X110
- Metal culvert pipe(corrugation 400X150mm)
- galvanzied culvert pipe
- Steel culvert
- Large culvert pipe
- galvanzied metal culvert
- Pipe Culvert
- Tunnel liner plate
- Corrugated steel shelter and safe room
- Corrugated box culvert structure
- CSP culvert
- Corrugated drainage pipe
- Gabion Mesh and Reno Materess
- Corrugated furnace for boiler
- Prestressed corrugated metal pipe
