degree of modulation one time cold rolled t1.5, t2.5,t3.5,t4,t5, second cold rolled dr-7m dr-8m dr-9m dr-10m Inner packing: Anti-rust paperOuter packing: Corner protected1) degree of modulation one time cold rolled t1.5, t2.5,t3.5,t4,t5,second cold rolled dr-7m dr-8m dr-9m dr-10m2)Temper T2,T-3, T-3CA, T-4, T-4CA, DR8, DR9 3)Tin coating mass: currently 2.8gsm single layer, can also produce ...