16. 冷媒鋼瓶著綠色者是?
(A)R-22
(B)R-134a
(C)R-407C
(D)R-410A。
答案:登入後查看
統計: A(38), B(2), C(2), D(0), E(0) #2302677
統計: A(38), B(2), C(2), D(0), E(0) #2302677