外表长得一样,但里面不一样- s* t' Y6 c; i" _' _$ i
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one stage T-STAT has "w" wire terminal2 G9 _" J8 X- w4 s
two stage T-STAT has "w1" and "w2" wire terminal# a2 `+ L h$ H( u7 W: F
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5 J- ?! B8 `* M. c+ T, l' Vmore question ,please call me 7809526512 huang