A few tips to check whether the reed is qualified after production

(1) Reeds of 100 mesh or less may be examined 

on a translucent table.

(2) For medium and high mesh reeds, it is 

necessary to use a magnifying (20-50) times 

microscope or projector to measure their density 

and the value of large reed holes.

(3) Surface quality, can be observed visually or 

(5 to 25) times microscope.

(4) Structural dimensions of the reed: working 

length and full length, working width and full

width, working height and full height, measured 

with a steel tape measure and calipers.

(5) The bending of the reed is examined with a 

platform and a stopper, and the unevenness of the 

reed surface is examined with a hand mold; the 

inclination and torsion of the reed are examined 

with a protractor and a triangular plate.