... optimal engineering and quality control Test lineThe KZZD roller brake tester is a flagshipproduct of Cosber, embodying years of production experience ... and quality control in testing technology makes the KZZD brake tester with excellent reliability and efficiency. ModelKZZD-3 PN:6002005KZZD-10 ... 380V, 50Hz, groundAC 380V, 50Hz, ground Vehicle Test line Axle Load & Brake Tester