外表长得一样,但里面不一样1 p1 r p6 g X- T: H" G1 X
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one stage T-STAT has "w" wire terminal; [" ]6 F- f9 ~9 U1 k
two stage T-STAT has "w1" and "w2" wire terminal1 s6 D! D U0 R- E+ o9 G: r: f4 [. V
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8 j$ p1 i) j2 K" G Q, S, `more question ,please call me 7809526512 huang