heavy duty hot dipped galvanized manual welded steel grating sewer cover well cover safety tread
Type | Welded steel grating, pressure-locked, socket-welding |
Steel flat size | 20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5^45×5mm |
Bearing bar pitch | 12.5,15,20,25,30,35,40,50mm |
Cross bar pitch | 38,50,80,100mm |
material | Low carbon steel, stainless steel, aluminium |
Surface treatment | Untreated, hot galvanized, painted |
Standards | China: YB/T 4001.1-2007 USA: ANSI/NAAMM(MBG531-88) UK: BS4592-1987 Australia: AS 1657-1985 |
· grating standard: YB/T4001.1-2007
· surface treatment of the steel grating: hot dipped galvanized
· zinc coating rate of the steel grating: as requirement
· size and shape of the steel grating: as requirement
· Cross Bar Spacing: 50mm 100mm
· Cross Bar Specifications: 5*5 6*6 8*8
· Bearing Bar Thickness: 3mm 5mm
· Bearing Bar Height: 25mm 30mm 32mm 40mm 45m
· Certification: ISO9001, SGS
· customize: YES
· Model No.: HTLL-030
· Place of Origin: Hebei
· Min.Order: 500 Square Meter
· Means of Transport: Ocean
