Is the weight set box made of aluminium or plastic?
砝码组盒是否由铝或塑料制成？
The E1, E2 and F1 Classes weight sets (monobloc weights) are delivered in an aluminum box and the F1, F2 and M1 Classes weight sets come in a plastic box.
E1、E2与F1等级砝码组（单模块砝码）采用铝盒，F1、F2与M1等级砝码组采用塑料盒。