... seam,no bubble 3.lowcost original material HYW art fence production line 1.Introduction:1) Adopt numerical parabolic controll and set the ... cost raw materials,such as common jointing materials,sand,saw powder,nanameter coagulant .5)High efficiency, for eg. 1.5m high ... 83)All the materials needed common jointing materials,sand,saw powder,nanameter coagulant.4)Working fund:2000-40000 RMB.5)Art ...