... /3,QT700/2 Grey iron:HT150,HT200,HT250,D400,E600,F9002)Loading weight of pressure:A15,B125 ... ,Europe,South Korea5)other coorelative products:cast iron grating,floor drain,pipe fitting,fastener and ... processed more than 200 kinds of ductile iron and grey iron manhole covers and grates 2) We ... Certificate of Approval: BVQI, LRQA, EN124 Packing: Iron or wooden pallet 5) Certificate of Approval:BVQI, LRQA ...