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Contact SupplierBlack steel grating has short life and low cost. It is popular with customers at present.
Steel grating size: 1m×6m standard type (special size and american standard size are also customizable)
material: low carbon steel (q235)=a36
surface treatment: hot dip galvanizing, paint or no coating
surface shape: plain, serrated and I type
steel grating standard: china ybt4001-2007
america ansinaamm (mbg531-88)
britain bs4592-1987
australia as1657-1992
steel standard: china gb700-88 astm (a36) bs4306 (43a)
hot dip galvanizing standard: china gbt13912-92 astm (a123) bs729
technological process
(1) material
(2) pressure welding
(3) cutting
(4) welding of ends bar
(5) hot dipped galvani-zation