This is an article about Equivalent to Shimadzu 220-91521-06 1mL 8X40 mm Shell Vials, Clear Glass, if you are interested in, pls contact us freely. Quzhou Lab Technology produce 1ml shell vials(V181+C181) can be 100% equivalent to Shimadzu 220-91521-06. V181: 1ml shell vials, 1st hydrol clear glass, flat bottom, 8*40mm, 100pcs/pk