HP-DHK series ob-txheej preheating kneading tshuab (Invention patent No.: ZL 2009 1 0014580.9) doubles lub efficiency ntau lawm, txuag 50% hluav taws xob, thiab 50% cov cuab yeej siv peev.In 2009, nws tau pom zoo los ntawm Tuam Tshoj Carbon Industry Association, paub zoo Shenyang Aluminium Magnesium Design Institute Co., Ltd., Guiyang Aluminium Magnesium Tsim thiab Tshawb Fawb Lub Tsev Haujlwm Co., Ltd., thiab ntau tus kws tshaj lij hauv tsev paub zoo los koom rau hauv kev ntsuam xyuas ntawm lub xeev thiab tsoomfwv kev tshawb fawb thiab thev naus laus zis.Ob-txheej preheating kneader yog thawj ntawm nws hom nyob rau hauv domestics thiab txawv teb chaws, mus txog lub thoob ntiaj teb ua theem ntawm cov khoom zoo sib xws.