外表长得一样,但里面不一样+ J- b Y- W0 Z! f. n
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one stage T-STAT has "w" wire terminal$ Y0 d4 N. ?; p+ W7 A. M
two stage T-STAT has "w1" and "w2" wire terminal+ h7 y0 x5 Q7 l8 n7 h3 Q
- V; |+ J- W& |- v + T" M8 e; i; A ]more question ,please call me 7809526512 huang