Coils inherently muaj ib tug tej℃ntawm elasticity thiab resilience. Yog tias qhov txhab ncaj qha tsis muaj pwm, lub kauj yog ua rau cov teeb meem hauv qab no:
Inconsistent puab thiab sab diameters
Irregular tig kev npaj
Coil deformation
Instantaneous kawg qhov ntev
Springback tom qab demolding
Nyuaj hauv kev sib dhos tom qab
