Baakad
Graphite-ka la balaarin karo waa la xidhi karaa ka dib marka la dhammeeyo kormeerka, baakaduna waa inay noqotaa mid adag oo nadiif ah. Qalabka baakadaha: bacaha balaastikada ah ee lakabka isku midka ah, bacaha balaastikada ah ee dibadda laga sameeyay. Miisaanka saafiga ah ee bac kasta 25±0.1kg, 1000kg bacaha.
Calaamad
Calaamadda ganacsiga, soo saaraha, darajada, darajada, lambarka dufcadda iyo taariikhda la sameeyay waa in lagu daabacaa bacda.
Gaadiidka
Bacaha waa in laga ilaaliyaa roobka, soo-gaadhista iyo jabitaanka inta lagu jiro rarista.
Kaydinta
Bakhaar gaar ah ayaa loo baahan yahay. Noocyada kala duwan ee alaabta waa in si gooni gooni ah loo dhigaa, bakhaarku waa inuu ahaadaa mid hawo fiican leh, oo biyuhu aanay celin karin.