ˮ̎wSVٿ
ʡwS|(zh)c(din)wSwSzY(ji)ɵġcy(tng)wVϲͬЏЧϸˮ϶ʴ^V^Vӿ϶ˮu׃С^VϴСĿ϶ֲҎ(gu)ЧʸVٿ죨20
wSָ(bio)
(qing)4
ʱһ
(du)(qing)ȱë
0.45-0.5
չԣ20PH65
͉A100
60-70Kg/m3
ܛc(din) 238
c(din) 255
(yu) 35HCL 75H2SO4 65HNO3
(du)(qing)ȟoӰ 10NaOH 28NH3H2O (du)(qing)ȟoӰ