help needed from textile/fabrics experts???

Assalam-u-alaykum kia aap mai se koiee mujhe bata sakta hai ke textile industry mai loom se kapde ki production hone ke baad uss ke defects kaise check karenge ....

Matlab ke crack, mispick, pati, double pick ... Slab wagera ke defects aur mazeed defects kaise check karen ge...

Plz aap mai se jo experts houn batayega yaa koiee aisi website aap ko pata houn jahan images ke saath woh guide karen