I-Aijiren ibonelela nge-screace vial vial vial isetyenziswa e-Aijiren, iShimarzu, i-tekc, i-rian, i-vartel, i-ristel yenzululwazi. Aijiren’s Screw Thread Headspace Vial are all round bottom, this is because A rounded bottom is more sturdy and thus more resistant to the high pressure within the vial during the heating process.