The part of a fuse that melts and opens the circuit is made of _____
A、copper and antimony;
B、 steel and babbitt;
C、aluminum or beryllium alloy ;
D、zinc or an alloy of tin and lead
发布时间:2025-09-06 07:26:53
A、copper and antimony;
B、 steel and babbitt;
C、aluminum or beryllium alloy ;
D、zinc or an alloy of tin and lead