Optical tambo, pombi yekudhinda tepi haifanirwe kunge isina kudonha yekubikira, yakatsetseka pamusoro, yakashambidzika mupendero, isina burr uye peeling chiitiko, tensile simba ≥2.5N, tembiricha yekutamisa kazhinji inenge 60 ℃ -90 ℃, inogonawo kugadziriswa zvichienderana nemamiriro chaiwo. yekugadzirwa kwevatengi.