Serrated steel grating-drainage cover (China manufacturer)

Serrated steel grating-drainage cover (China manufacturer)             Product Description 1> Steel Grating Specifications  

No.	Term	Part Description
1	Material Standard	ASTM A36, A1011, A569, Q235, S275JR,  SS304, Mild steel & Low carbon steel, etc
2	Bearing Bar	25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5,  40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'',  1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc
3	Bearing Bar Pitch	12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3,  32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
4	Twisted Cross Bar Pitch	38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
5	Surface Treatment	Black, self colour, hot dip galvanized, painted, spray coating
6	Grating Style	Plain / Smooth, Serrated /teeth, I bar, serrated I bar
7	Standard	China: YB/T 4001.1-2007,  USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987,  Australia: AS1657-1992,  Japan:JIS

  8> Steel Grating Packing      FAQ 1.Are you a manufacture? Yes ,we have been in providing the products in this field for15 years. 2.Is customized available ? Yes ,according to your detailed drawings you provide. 3.How many days will the samples be finished ?And how about the mass production ? Generally the samples will be sent immediately by the air express in 3~5 days if the goods are in stock .Normally within 30 days or according to your order . 4.what’s the payment  terms? Usually 30 %as deposit .70%before shipment by T/T,western union acceptable for small account and L/C acceptable for large amount . Thank you for visiting our product ! If you have any other questions ,please contact me at any time ,I will answer you as soon as possible!