Lwm qhov tshwj xeeb ntawm kev ntim khoom tuaj yeem muab tau raws li cov neeg siv khoom xav tau
(CO2 He/N2, CO CO2 He/N2) Hydrogen hauv nitrogen, hydrogen hauv argon, argon methane, nitrogen methane, oxygen hauv argon, carbon dioxide hauv argon, nitrogen hauv helium, carbon dioxide hauv oxygen, thiab lwm yam.
(CO2 He/N2, CO CO2 He/N2) Hydrogen hauv nitrogen, hydrogen hauv argon, argon methane, nitrogen methane, oxygen hauv argon, carbon dioxide hauv argon, nitrogen hauv helium, carbon dioxide hauv oxygen, thiab lwm yam.
sib tov
Tham kom paub meej
Daim ntawv thov
Semiconductor
Hnub ci Photovoltaic
LED
Machinery Manufacturing
Kev lag luam tshuaj
Kev Kho Mob
Khoom noj khoom haus
Kev Tshawb Fawb Txog Kev Tshawb Fawb
