... by Sand Casting Process, Powder Coated Process Surface, Suitable for Construction,OEM order is accepted. Material: aluminum alloy Fences made of ... alloy by sand casting,Powder Coated Process Surface, Suitable for Construction,OEM orser is accepted Die, sand and mold casting process ... Casting capacity: 200 to 500 tons/month Sell Handrail,Aluminum fence (ISO9001:2000)