Whatman 濾膜 800282 Nuclepore 聚碳酸酯膜 19mm 0.40m 100/盒

Whatman 濾膜 800282 Nuclepore 聚碳酸酯膜 19mm 0.40m 100/盒 NUC PC 19MM 0.4uM 100/PK