Kuoma: mahombekombe A 67A - mahombekombe A 90A

Iyo yakapedzwa inonamira ine yakanaka solvent kuramba uye kupfeka kuramba, yakanaka elasticity uye kudiki compression deformation.

Inoshandiswa kugadzira machira ekudhinda, ma scrapers uye zvimwe zvakaderera kuomarara zvisingabatike machira, mavhiri erabha uye zvimwe zvigadzirwa.