C2700W-EH C2700W-3/4H铜板深拉伸和弯折强度 JM 7 Johnson Metall / Own brand name on Swedish standard SS 5716-15 (Cu Al10 Ni5 Fe4 F70), AB-200 JM 7-20 Johnson Metall / Own brand name on Swedish standard SS 5716-20 (Cu Al10 Ni5 Fe4 F74), AB-220 Ni JM 9 Johnson Metall /...