Forged yog ib lub tuam txhab tsim khoom uas paub zoo txog cov hlau refractory hauv Suav teb. Nrog 20 xyoo kev paub thiab ntau tshaj 100 qhov kev tsim khoom, peb nkag siab zoo txog tus cwj pwm thiab lub peev xwm ntawm molybdenum, tungsten, tantalum, thiab niobium. Ua ke nrog lwm cov khoom siv hlau thiab ceramic, peb tuaj yeem hloov kho cov yam ntxwv ntawm cov hlau kom haum rau koj cov kev xav tau tshwj xeeb.
Peb qhov kev lag luam nyob qhov twg: Txog tam sim no peb tau tsim cov txheej txheem prosy hauv Algeria, Egypt, Iran, South Africa, Is Nrias teb, Malaysia thiab lwm lub tebchaws Es Xias Qab Teb. Kuj tseem nyob hauv Middle East thiab South America. Peb muaj tus khub thiab ntau tus neeg siv khoom.
