Quality control-R&D institutions's customers have bought 166 kinds of detection instruments here
Level 1:
Statement: The following testing instruments are based on the customer's purchase behavior, not officially recommended, only for reference!
Genuinegoods
MODERNER QXD-25 small double-channel qxd Fineness gauge 25 micron particle Fineness gauge
Japanese OSP L60 Spreader handle, used with OSP L60 series short stick