Dear Wang
Please, you send for me prices for microscope cover glass, below:
9011818……… 18x18mm
9012020………. 20x20mm
9012222………. 22x22mm
9012424………. 24x24mm
9012432………..24x32mm
9012440………. 24x40mm
9012450……… 24x50mm
9012460………. 24x60mm
Best regards
Hélio Biacchi / Bioglass