trench cover

详情

1) Bearing Bar (Load Bar) Specifications (mm): The specification of plain type and serrated type bearing bar is *0 x 3 to **0 x *0;the specification of I-section type is *5 x 5 x 3, *2 x 5 x 3, *8 x 5 x 3, *0 x 5 x 3, *0 x 5 x 3, *0 x 7 x 4, *5 x 7 x 4, *0 x 7 x 4, *5 x 7 x 4, *0 x 7 x 4, *5 x 7 x 4, etc.
2) Bearing Bar Pitch (center to center): *2.5, *5,*5, *0, *0.*6, *2.5, *4, *0, *1.*5, *5, *0, *0, *0.*2, *0, **0 mm etc, also be according to client's requirement and *0, *0, *0mm are recommended, America standard is available
3) Cross Bar Pitch (center to center): *8, *0, *6, **0, **1.6mm etc, also be according to client's requirement and *0, **0mm are recommended, America standard is available.

Steel grating standards:
A) China: YB/T********8