ˮ̎wSVٿ
ʡwS|(zh)c(din)wSwSzY(ji)ɵcy(tng)wVϲͬЏЧϸˮ棬϶ʴ^(gu)V^(gu)Vӿ϶ˮu׃С^VϴСĿ϶ֲҎ(gu)ɣЧʸߣVٿ죨20
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)ȟo(w)Ӱ 10NaOH 28NH3H2O (du)(qing)ȟo(w)Ӱ