สถานที่กำเนิด
Hebei, China
Name
steel grating cost per square foot
Flat bar size
20*3,20*4,20*5,30*3,30*4,30*5,etc
Pitch
30/100,30/50,30/38,40/100,40/50,etc
Surface treatment
galvainzed
Standard
ANSI/NAAMM-MBG531
Application
Structural,industry,walkway