Missing: in short,lacking of, shortage,not enough

　　Fault: incorrect, not in accord with the equipment

　　Damaged: cause the damage: lose effectiveness

　　In the above,please contact our company,call 021-34098999(switchboard) or hot-line 400 880 2959 (Free).Please tell me your company name,contact person and the state of the equipment when you contact us.That will be help us to deal it in a short time.