... QC processes including incoming materials QC, IPQC (in process QC on patrol), LQC (line QC), Ageing test QC(Before our batteries ... OQC (output QC before shipping).How to order:please tell us the specific model,color,battery capacity,and the quantity that you need in ... informations,we will make a PI(proforma invoice) foryou to confirm the order if you need. clear atomizer ce4 ego-k electronic ...