龙津有机尼龙MCE水系微孔滤膜DMSO过滤有机溶剂47/50/0.1/0.22um
¥32
0
¥6.5
100
¥13.9
¥8
¥4.2
500
¥3
1
¥5
77
¥6
200
48
¥5.5
25
700