This paper describes a non - excavating construction machine - hydraulic perforator.

本文介绍了一种新型非开挖施工机械———液动穿孔机。

Tools for working in the hand, pneumatic and hydraulic and with self-contained electric or non-electric motor.

手提式风动或液压工具及本身装有电动或非电动动力装置的手提式工具。

Design and production standards and non-standard hydraulic cylinder, hydraulic station, hydraulic machinery and other products.

设计生产标准及非标准液压油缸、液压站、液压机械等产品。