Description

drainage grating 

Welded Grating Specification: 
Transverse bar pitch: 
A: 100mm(centre axis pitch) 
B: 50mm (centre axis pitch)
C: 25mm (centre axis pitch)
Flat bar size:
20×3mm to 75×6mm:
Flat bar centre pitch: :
Series 1:30mm( centre axis pitch) :
Series 2:40mm( centre axis pitch) :
Series 3:50mm( centre axis pitch) :
Steel Grating surface :
P: Plain S: Serrated :
Steel Grating Surface Treatment 
U: Untreated G: Galvanization Hot Dipped