1. As the curvature of shell steel plate exceeding the specified value, three 1200m 3 imported ethylene spherical tanks were judged to unqualified product and put aside as useless. After repairing and reinstalling, the shell steel plate were reused.
三台1200m3引进乙烯球罐因球壳板的曲率超差判为不合格品而废置，后对球壳板进行修复重新安装再利用。