... decksĀ ,Website:http://www.jsbaileybridge.com, Heavy Duty trench cover is applied on walkway, carriageway, courtyard etc; used ... hot-dip-galvanizing finish is used as antiseptic. Grating trench cover is composed of fixed frame & movable grating. It ... , floor, walkway, stair treads, trestle, fencing, drainage, trench cover, pit cover, suspended ceiling, ventilates and light through facility, etc.4) ...