迮气动螺丝刀ULEMA 气动螺丝刀 ULEMA UL-12HK 工业级·大扭力 STABLEAND SUSTAINED POWER IT'S BETTER TO KEEP SCREWING HIGH-PRECISION CNC QUALITY MANUFACTURING PROCESS. AFTER QUENCHING AND HARDENING TREATMENT.IM PROVE DURABILITYEASY YINGD ULEMA 11.=103 强劲大扭力 ULEM 高精同心度 轻松打螺丝 可终身维护