Refrigerants

출구

의문 1 of 1

  남은 시간


0
142284
0
120
block

Which of the following refrigerants have the designation R-40?

올바른 답변 선택  

(0/0)












142285
0
120
none
142286
0
120
none
142287
0
120
none
142288
0
120
none
142289
0
120
none
142290
0
120
none
142291
0
120
none
142292
0
120
none
142293
0
120
none
142294
0
120
none
142295
0
120
none
142296
0
120
none
142297
0
120
none
142298
0
120
none