Widely used in the welding of aluminum structure in aviation, vehicles, ships, petrochemicals and aluminum alloy furniture. Si Fe Cu Mn Mg Cr Zn Ti ER4043 4.5-6.0 0.80 0.30 0.05 0.05 ----- 0.10 0.20 WIRE: Diameter: 0.80mm 0.90mm 1.0mm 1.2.mm 1.60mm Weight: 0.50kg/spool or 1lb/spool 1.0kg/spool or 2lb/spool 2.0kg/spool or 5lb/spool 5.0kg/spool or 12lb/spool 7.0kg/spool or 16lb/spool Or: Wire in coil, 5kg/15kg/25kg/40kg per cpil. Packing: standrad strong export packing or as per customer ordered