Itekhnoloji yemveliso yodongwe oluluqilima:
Ukubunjwa kodongwe lwe-anhydrous taphole lunokwahlulwa lube ngamacandelo amabini - i-refractory aggregate kunye ne-binder. I-refractory aggregate ibhekisa kwizinto ezingafunekiyo ekrwada ezifana ne-corundum, i-mullite, i-coke gem kunye nezinto ezilungisiweyo ezifana ne-coke kunye ne-mica. I-binder ngamanzi okanye i-tar pitch kunye ne-phenolic resin kunye nezinye izinto eziphilayo, kodwa zixutywe kunye ne-SiC, i-Si3N4, i-agent yokwandisa kunye ne-admixtures. Ukudibanisa ngokobukhulu obuthile kunye nobunzima be-matrix, ngokudibanisa i-binder ukuze ibe neplastiki ethile, ukwenzela ukuba i-cannon yodaka inokuqhutyelwa emlonyeni wentsimbi ukuvala isinyithi esishushu.