Material classification lam atanga thlir chuan nylon hi plastic chi khat a ni. Plastics hi high{1}}molecular compound class a ni a, plasticity leh processability a lantir a ni. Nylon hian synthetic fiber angin heng property te hi a nei bawk. Chuvangin nylon screw hi plastic screw-ah kan dah thei a ni. Metal screw nena khaikhin chuan nylon screw hian a rit zawk a, a man a tlawm zawk a, corrosion resistance a ti tha zawk bawk.
