Ukuqina kweglasi kuphezulu kakhulu, xa ukusetyenziswa akukho lula ukukrwempa nokukrwempa jikelele isodiyam calcium glass vickers hardness (HV) yi 400 ~ 480MPa, kwaye ubulukhuni beplastiki buphantsi ngokwentelekiso, kulula ukukrwempa, njengepolyvinyl chloride. (PVC) i-HV yi-10 ~ 15MPa, i-polyester ye-thermosetting (i-PET) yi-10 ~ 21MPa, i-polyethylene (PE) yi-5 ~ 8MPa, i-polypropylene (PP) yi-6 ~ 11MPa.
Ixesha lokuposa: Jan-10-2020