Free Sample Offering
Try SIEVEWELL for your project. We ship worldwide.
5 slides can be delivered relative to a trial request, to each laboratory, for each project.
Please email or fill up the following form. We usually reply within two business days. Please check your spam or junk mail folder as our mail automatically may be classified as spam mail.

Takashi Osaka
New Business Division
Tokyo Ohka Kogyo Co. Ltd.
1590 Tabata, Samukawa, Koza, Kanagawa, 253-0114, Japan
- Please enter the information below to request a free sample.
- We’ll contact you for shipping and delivery address.
- We’ll follow up to see if we can get some feedback on the products you received.