Overpressure valve for hydraulic lifting devices support particularly for hydraulic mine props

• 1. 用于液压支柱的支撑阀 [P] . 中国专利： CN205532646U . 2016.08.31
• 2. 矿用相向伸缩显压单体液压支柱 [P] . 中国专利： CN207701151U . 2018.08.07
• 3. Overpressure valve for hydraulic lifting devices in particular for hydraulic mine stemples (Machine-translation by Google Translate, not legally binding) [P] . ES77505U . 1960-04-01

  机译： 用于液压起重装置的超压阀，特别是用于液压矿山阀杆的超压阀（由Google Translate进行机器翻译，无法律约束力）

• 4. Overpressure valve for hydraulic mine props [P] . ES77507Y . 1961-02-01

  机译： 液压矿用道具超压阀

• 5. OVERPRESSURE VALVE FOR HYDRAULIC ELEMENTS OF THE MINE SUPPORT MAINLY FOR THE ANTHRACITE MINES [P] . CS218582B2 . 1983-02-25

  机译： 主要用于无烟煤矿山的矿山液压元件的超压阀

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