Alwsci 5mm 0.3ml Micro Glass Vial Conical Bottom with Plastic Spring Insert

China Alwsci 5mm 0.3ml Micro Glass Vial Conical Bottom with Plastic Spring Insert, Find details about China Micro Insert, 250UL Micro Insert from Alwsci 5mm 0.3ml Micro Glass Vial Conical Bottom with Plastic Spring Insert