AdvantagesB.Description:a.cast iron materialb.flat and firm surfacec.easy to install and cleanC.Shipping information:a.MQQ:1000piecesb.Port:Qingdao Chinac.Supply capacity:9000pieces/monthd.Delivery time:20dayse.Packing:carton packagesmooth ,Website:://.sdwfweijia.com,used for cultivating pigs or sewers grey iron