Alwsci 6mm 0.2ml Micro Glass Vial Connical Bottom with Plastic Spring Insert

China Alwsci 6mm 0.2ml Micro Glass Vial Connical Bottom with Plastic Spring Insert, Find details about China Micro Insert, 250UL Micro Insert from Alwsci 6mm 0.2ml Micro Glass Vial Connical Bottom with Plastic Spring Insert