Gwajin watsa haske
Gwajin kusurwar digon ruwa
Gwajin tensile
Scratch hardness tester
Gwajin juriya
Gwajin matsin lamba
Gwajin zubar da ƙwallo
Lankwasawa maki uku
Gwajin zafi mai girma da ƙananan
Gwajin damuwa na saman