Tsawg Carbon Steel Phaj
Lus piav qhia luv luv:
Nrog rau txoj kev loj hlob ntawm science, Technology thiab kev lag luam, cov kev xav tau siab dua yog muab tso rau pem hauv ntej rau cov ntaub ntawv, xws li lub zog siab dua, tsis kam mus rau qhov kub thiab txias, kev kub siab, qis kub, corrosion kuj, hnav tsis kam thiab lwm yam tshwj xeeb lub cev thiab tshuaj lom neeg, carbon hlau tuaj yeem tsis ua raws li qhov yuav tsum tau ua.
