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FRP SMC BMC DMC Manhole cover: 1.EN124 standard 2.A15,B125,C250,D400 3.ISO9000:2001FRP,GRP, SMC , DMC,BMC Manhole covers, gratings,gully tops and Tress grilles, and etc, Which are made from composite material like glass fiber,resin,quartz sand and...
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