This section trod the chair to adopt the unique spring replacement system steadily, might the more convenient change difficulty of movement, effective protection of equipment.
此款稳踏椅采取了独特的弹簧更换系统，可以更便捷的改变动作难度，同时也有效的保护了器材。
2
This system realizes all the protection and control functions for charging equipment.
该系统实现了充气设备的各种保护和控制功能。
3
This authorization we production equipment and protectionsystem component, in potential explosive gas environment use.