20 xyoo kev paub hauv daim teb no
Peb muaj peb tus kheej R & D pab neeg.Tau ntau xyoo, raws li peb tus kheej kev tshawb fawb thiab kev tsim kho, peb tau txais cov thev naus laus zis zoo hauv cheeb tsam no ob qho tib si hauv tsev thiab txawv teb chaws.Tam sim no peb cov khoom lag luam zoo tau txhim kho ntau yam.Tshwj xeeb tshaj yog cov kabmob sab nraud Rotary Airclock Valve, thiab lub xyoo thib 3 tag nrho peb xaus qhov tshwm sim ntawm cov hmoov channel, thaiv, thiab daig.Thiab cov khoom zoo tau mus txog qhov siab tshiab