Tawg pov thawj txoj kev teeb

Tawg pov thawj txoj kev teeb yog tsim los muab kev ruaj ntseg thiab continuous teeb nyob rau hauv flammable thiab explosive tej chaw. Muaj peev xwm to taub huab lwm yam mob, Lawv xyuas kom zoo lit thiab ruaj ntseg txoj kev thiab lwm qhov chaw.