1. In the public passageway or the outdoors crossing the road section, the bottom of the bottom steps should be added to the plate or use the tray in the section. When the large span crosses the public passage, the load capacity of the bridge can be improved or the row frame can be selected according to the requirements of the user.

　　2、需屏蔽电器干扰的电缆网路或有防护外部（如：有腐蚀液体，易燃粉尘等环境）影响的要求时，应选用（FB）类槽式复合型防腐屏蔽电缆桥架（带盖）。

　　2, when the cable network with shielding electric appliances is interfered or the requirements for the protection of external environment (such as corrosive liquids, inflammable dust and other environments), we should use (FB) grooved compound anti-corrosion shielded cable tray (cover).

　　3、强腐蚀性环境应采用（F）类复合环氧树脂防腐阻燃型电缆桥架。托臂、支架也要选用同样材料，提高桥架及附件的使用寿命，电缆桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。

　　3, the strong corrosive environment should adopt (F) type composite epoxy resin anticorrosion and flame retardant cable bridge. The bracket will choose the same material, improve the service life of the bridge and annex, cable tray. A cover board should be added to the easy to ash and other covered environments or outdoor places.

　　4、大跨距（>3m）要选用复合型桥架（FB）。

　　4, the large span (>3m) should choose the composite type bridge (FB).

　　5、户外要选用复合环氧树脂桥架（F）。

　　5, the outdoor use of composite epoxy resin bridge (F).

　　6、除上述情况外，可根据现场还环境及技术要求选用托盘式、槽式、梯级式、玻璃防腐阻燃电缆桥架或钢质普通型桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。

　　6, in addition to the above circumstances, we can choose tray type, trough type, step type, glass anticorrosive flame retardant cable bridge or steel ordinary bridge frame according to the on-site environment and technical requirements. A cover board should be added to the easy to ash and other covered environments or outdoor places.

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　　We are filled with enthusiasm and passion towards work and customers, we are willing to use the hard work and you create a better tomorrow!