Ho thatafala ha khalase ho phahame haholo, ha ho sebelisoa ha ho bonolo ho phunya le ho senya ka kakaretso sodium calcium glass vickers hardness (HV) ke 400 ~ 480MPa, 'me ho thatafala ha polasetiki ho batla ho le tlaase, ho bonolo ho ngoaha, joalo ka polyvinyl chloride. (PVC) HV ke 10~15MPa, thermosetting polyester (PET) ke 10~21MPa, polyethylene (PE) ke 5~8MPa, polypropylene (PP) ke 6~11MPa.
Nako ea poso: Jan-10-2020