(1) Malinga ndi mulingo wamakono waukadaulo, makulidwe azinthu zamkati zamkati ali pakati pa 1 ndi 5mm, ndipo makulidwe azinthu zambiri pafupifupi 1.5mm.

(2) Malinga ndi mtundu wapano komanso kugwiritsa ntchito zinthu zopangidwa ndi zamkati, katundu wambiri akhoza kukhala mpaka 150kg. Kulumikizana kwamkati kwa zinthu zopanda mawonekedwe ovuta komanso ochepera 50kg ndiye chisankho chabwino. 

(3) ogwidwawo wa mankhwala kuumba zamkati malinga ndi mawonekedwe a kapangidwe ka mankhwala ndi buku, kulemera, ntchito zipangizo, amafuna kupanga ndondomeko, mankhwala linanena bungwe.The mtundu, mtengo, etc wa ma CD.At panopa, ndi ambiri amagwiritsira ntchito kutembenuza mtengowo kukhala zidutswa zolemera, monga Yuan / gramu kapena Yuan / ton; Kuchokera momwe zimakhalira ku East China, mtengo wazogulitsa ndi 9000 ~ 10000 yuan / ton, mtengo wazinthu zomwe zili ndi mawonekedwe owoneka bwino komanso kukula zofunikira ndi 2000 ~ l4000 yuan / ton. 

(4) Zamkati akamaumba mafakitale ma CD kupanga ndondomeko mu mlingo mankhwala Choyenereza ndi kudalilika kwa mzere kupanga nawo kupanga ndalama vuto lalikulu.At pano, mlingo woyenerera wa mankhwala a zitsanzo zoweta ndi za 85% ~ 95% .