HP-DHK jerin biyu-Layer preheating kneading inji (Invention lamban kira No.: ZL 2009 1 0014580.9) ninki biyu da samar yadda ya dace, ceton 50% na wutar lantarki, da kuma 50% kayan aiki zuba jari.In 2009, shi aka amince da China Carbon Industry Association. sanannen Shenyang Aluminum Magnesium Design Institute Co., Ltd., Guiyang Aluminum Magnesium Design and Research Institute Co., Ltd., da kuma sanannun masanan carbon na cikin gida da yawa don shiga cikin tantance nasarorin kimiyya da fasaha na lardi da minista.Kneader-Layer preheating kneader shine irinsa na farko a cikin gida da waje, wanda ya kai matakin jagorancin kasa da kasa na samfuran makamancin haka.