Min. Order:
1
Place of origin:
China
INTRODUCTION PN-BST Bekk smoothness tester is a new type of test developed by our company according tothe specification of international standard. The instrument mainly test the smoothness off the paper or cardboard (by Bekk method). Bekk smoothness: time in seconds which under a defined pressure differential is required to draw a definite quantity of air at atmospheric pressure between the surfa
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