1.By improving the BTR1-PST286 wish single sucperd hydraulie trepanner made in Germany.Realize adjustable of electric line.preventing accidents of electric line or stecly line fall down.

1.通过对新引进的全德国制BTR1-PST286液压钻车配套技改,电缆的自拉自收,避免了电缆拉脱或起钢丝绳拉掉事故的发生。