Ductile iron square manhole cover
Raw material: ductile iron QT500-7
Grade: D400 or used in the carriageway of roads
Clear opening: 300*300/400*400/500*500/600*600/
700*700/800*800/900*900/1000*1000/
1100*1100mm
Character: single seal, with closed key hole, cut-corner
design, with kitemark
Web Site:
SYI can provide the products instructions and the guide of production installation to customers.
With annual production capacity of 35,000 tons, our major equipments include 2 sets of automatic moulding lines, 4 sets of 5-tons cupola and furnaces, 2 sets of load testing machines, 1 epoxy coating machine, 5 sets of core-shooting machines, 3 set of shot blasting machines, 4 set of water pressure machines, 2 machining workshops and all necessary chemical and physical test facilities.
SYI regards quality as an essential and integral part of our business success. Until now, we are ISO 9001:2008, TUV certified, BSI Kitemarked, SGS certified, UL listed, FM certified, NF certified and CE certified. Manufacturing "SYI" Brand products has evolved as a mark of quality!
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