热镀锌钢格栅板 球接栏杆   踏步板   复合钢格板

2.1 标准规格
30A系列：G203/30/100 G253/30/100 G303/30/100 G323/30/100 G455/30/100
G255/30/100 G305/30/100 G325/30/100 G405/30/100 G505/30/100
40A系列：G203/40/100 G253/40/100 G303/40/100 G323/40/100 G455/40/100
G255/40/100 　G305/40/100 G325/40/100 G405/40/100 G505/40/100
30B系列：G203/30/50 G253/30/50 G303/30/50 G323/30/50 G455/30/50
G255/30/50 　 G305/30/50 G325/30/50 G405/30/50 G505/30/50
40B系列：G203/40/50 G253/40/50 G303/40/50 G323/40/50 G255/40/50
G305/40/50 G325/40/50 G405/40/50 G455/40/50 G505/40/50