Product name: Steel balls for tape initial adhesion tester

Steel ball size: 1/46-1

Number of steel balls: 46

Steel ball material: bearing steel Gcr15

Product features:

Complete steel ball set

Overall polishing, fine grinding, high gloss.

Each steel ball is carefully selected, and there is no inferior product.

High-quality transparent plastic box packaging.

Easy to open and close.

Applicable to all current initial adhesion test machines.

Operation instructions: Place the sticky surface upward on the test plate tilted at 30 degrees, take the steel ball from the 

largest one, and let it roll down freely in order, and record the number of balls that can stick to the test piece for more than 

5 seconds.