QND-4B Coated 4 Viscometers (Aluminum Cup)'s video
NBCHAOVIDEO682 plays · · 2019-07-25
JINGKELIAN QND-4B coated 4 Viscometer, QND-4 has three different cup bodies: plastic, aluminum, copper. But the metal cup shall prevail. This QND-4B coated 4 cup is made of aluminum.