The uo –transmission device with the unique watercooling to reduce speed, universal joint , the low rate of malfunction. it is easy to service.
上传动装置采用独特水冷减速器，万向联接，故障率极低，易于维修。
2
Meanwhile, strain hardening capacity of FSW joint in coolingwater also enhances, and the tensile fracture presents the characteristic of microporous polymeric fracture.