HS Code: 8421999010
Liquid membrane filtration or purification device and machine parts ,made of fluorine polymer thickness less than 140 microns filtration or purification;Purification machines and apparatus parts,with gas filter equipment stainless steel shell, entrance pi
用氟聚合物制造的厚度不超过140微米的过滤膜或净化膜的液体过滤或净化机器及装置的零件;装备不锈钢外壳、入口管和出口管内径不超过1.3厘米的气体过滤或净化机器及装置的零件;