Zvinyorwa zvezana zvakavapo muzana ramakore rechi19 Rubber Vulcanization mumiririri, kugadzirisa zvinowedzera uye zvinokosha zvinoshanda zvinowanikwa semazana ezvigadzirwa, zvinondishandira muindasitiri yerubhi, indasitiri yerubhi ndeyekuti zvinhu zvakakosha uye zvakaringana zvinhu {{2}
Rubber Auxilearies anotamba basa rakakosha mukuvandudza rabha yekugadzirisa tekinoroji uye yechigadzirwa {}}
Shandisa yeRabha Auxililies
SHAMBARVESS inoshandiswa zvakanyanya mukugadzirwa kwematayi, dzimba dzekurara, dzimba dzekuratidzira {}. Rabha {5}