... , ROHS, SGS 1. ALUMINIUM ALLOY :1000 series : 1020,1060,1100,1150,1170,1175,1180,1185,1193,1199,1200,1230,1260,1345,1350,1370 ... , tolerance≤6% 11. HARDNESS OF PENCIL : ≥3H 12. ADHENSION : no lower than class 1 13. MEK: ≥150 times 14. IMPACT RESISTANT ...