We offer trench cover. 1) bearing bar (load bar) specifications (mm):the specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;the specification of i-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x...
We can supply all kinds of manhole cover, trench cover, ditch cover, steel grating etc used for road, petroleum extensively, chemical industry, port, all kinds of project platform , walking, drainage pit cover, municipal administration, architecture...