A.1000 B.1500 C.2000 D.2500
A.15ْC-25ْC;40%-70% B.18ْC-28ْC;45%-75% C.15ْC-25ْC;45%-75% D.18ْC-28ْC;40%-70%
A.16DB B.26DB C.12DB D.22DB