邻居的丰满人妻2,无人区在线观看高清完整版,每天都在汆肉中醒来温殊,公翁的大龟挺进秀婷苏玥,一级特黄特色在线观看,锕锕锕锕锕锕好大好湿爹爹,91混血哥精品在线,和网友第一次3p的性爱经过,舔小屁眼小说,隐秘而伟大电视剧小说

BNDC
BNDC type DC traction switchgear
Provides customers with a new maintenance free concept and high reliability. The products are mainly used in 750V / 1500V DC traction power supply systems such as urban rail transit and tram.
Features and highlights

Standardized, modular and intelligent comprehensive solutions can meet the requirements of DC power supply control and protection of different systems;

Large breaking capacity and small size;

Less maintenance, and the permanent magnet operating mechanism is simple and reliable;

The minimum bidirectional breaking current is less than 25A;

Tungsten carbide silver contact, which is safe and reliable.

返回頂部
Copyright ? Guangzhou Baiyun Electric Equipment Co., Ltd. All Rights Reserved 粵ICP備05024257號-2