1. Oil anti-leakage technology: Airproof parts which import from Japan and oil anti-leakage technology which is exclusive national patent. These can auure the pumps continuous running without any oil leaking.
2. Double protectors: over-load protector and over-heat protector, even under abnormal manipulation can protector the motor from damaged and keep safety.
3. Anti-block technology: we adopted American technology of anti-abrasion and special dispose of material, the pump will not block under long-term operation.