... ,I-shape 4>galvanized Standard Grating Features: High strength and light structure The reliable grid welding enables high load bearing ... light structure is advantageous for hoisting The contour is artistic and durable The hot dipping zinc surface treatment offers good ... lid, the well lid, the ladder, the railing, the guard rail and so on. NoItemDescription1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5 ...