Borosilicate iglasi yokugcina iglasiIketile esuswayoAmanzi acocekileyo kunye neketile imisebenzi emininziUlawulo oluhlakaniphileUmthamo ungakhethwa ukonga amanzi4 izihluzi twin RO
Gxininisa ekuboneleleni ngezisombululo zemong pu iminyaka emi-5.