模具钢合结钢ф1640CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф1840CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф2040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф2240CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф2540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф2840CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф3040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф3240CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф3540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф3640CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф3840CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф4040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф4240CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф4540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф5040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф5540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф6040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф6540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф7040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф7540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф8040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф8540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф9040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф9540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф10040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф10540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф11040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф11540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф12040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф12540CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф13040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф14040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф15040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф16040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф17040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф18040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф19040CrNiMoA/20CrNiMoA上海重特、兴澄、上钢五厂、苏钢 模具钢合结钢ф20040CrNiMoA/20CrNiMoA上海重特、兴澄