About our company: (1).The real manufactory , give you a good quality and a best price, and we have 12 years experience. (2).Contract manufacturing: oem service offered, buyer label offered (3).No. Of production lines: above 5 (4).Many years management , give you a good service (5).Our products are well sold in china and abroad Steel grating advantage: Light weight, great load-bearing capacity, non-slip and safe, easy installation, material-economic, sturdy and durable, ventilated, easy to clean and attractive appearance. Steel grating usage: Steel bar grating is mainly used in chemical industry, food processing, hydro processing and other industries as listed : 1power plant 2chemical plant 3oil refinery 4steel plant 5machinery plant 6paper-making factory 7cement plant 8civil engineering 9wastewater treatment 10pharmacy industry 11food processing Steel grating extended products: Steel grating may be applied to platform, floor, walkway, stair treads, trestle, fencing, drainage, trench cover, pit cover, suspended ceiling, ventilates and light through facility, etc. Steel grating specifications: 1/type: plain / smooth, serrated /teeth, i bar, serrated-i bar 2/steel flat size:20x3, 25x3, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5â?¦120x10mm, .Etc. 3/bearing bar pitch: 12.5, 15, 20, 25, 30, 35, 40, 50mm 4/cross bar pitch: 38, 50, 80, 100mm....... 5/material: low carbon steel, stainless steel, aluminum alloy 6/surface treatment: untreated, hot galvanized, painting, electro galvanized Grating standardchina: yb/t 4001.1-2007 Usa: ansi/naamm(mbg531-88) Uk: bs 4592-1987 Australia: as 1657-1985 Material standardchina: gb 700-88 Uk: bs 4360:1990 Usa: astm a36/a36m-96 Australia: as 3679 Hdg standardchina: gb/t13912-2002 Uk: bs729 Usa: astm a123/a123m-97a Australia: as 1650