Cov pa roj carbon steel phaj yog lub tiaj tus hlau nrum nrog molten steel thiab nias tom qab txias.Feem ntau yog siv rau hauv kev tsim khoom ntawm stamping qhov chaw, lub tsev txuas hniav, tsheb thiab engineering qauv thiab machinery manufacturing tshuab qauv thiab qhov chaw.