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GB/T.1Determination of pilling properties of textile fabrics - Part 1: Circular trajectory method
JIGBell-type gas flow standard device verification procedures
DIN.2Testing of textiles - Wear test of flat fabrics – Roll to mill

Items	Parameters
Grinding head is in contact with grinding plane	≤0.2mm
The parallelism of grinding head and grinding plane	≤0.3mm
The relative movement trajectory of grinding head and grinding plane	40±1mm
Nylon brush surface is flush, its height difference	<0.5mm
Grinding plane reciprocating speed	60±1 times/min
Weight of grinding head	490cN±1%
Weight of heavy hammer	290cN±1%
Weight of hammer	100cN±1%
Select the number of times	1~9999

1. Scientific mechanical structure, smooth rotation, no mechanical noise, no contact fatigue failure, suitable for long continuous operation.
2. The use of standard nylon brush, the rigidity of nylon wire must be uniform, so as to control the fluff effect of nylon brush.
3. Ergonomic design, the surface using a spray forming, smooth and beautiful.