... FT: 1980pcs 40'FT: 3960pcs40'HC: 4400pcs DESCRIPTION:1,Our own core technology, high-quality motor, powerful torque ... .2,Gear select high-quality materials, and treated by high-frequency heat, it increase machine life ... power when the car jacked.10,According to GS testing standard, dynamic loading:1:1.25,static loading:1:1. 5 .11, ... : TUV/GS,CE,UL,ROHS,ISO9001:2000. Electric car Jack