CR1350-1700MS材料GB/T 20564.7-2022 CR1350/1700MS板卷0.5~3.0mm ¥5.18 CR350-590CP材料GB/T 20564.8-2015 CR350/590CP板卷 ¥5.14 CR500/780CP材料GB/T 20564.8-2015 CR500/780CP板卷 ¥5.14 CR700/980CP材料GB/T 20564.8-2015 CR700/980CP板卷 ¥5.14 CR550/980QP材料GB/T 20564.9-2016 CR550/980QP板卷 ¥5.14 CR650/980QP材料GB/T 20564.9-2016 CR650/980QP板卷 ¥5.15