北京煤矿机械厂
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中煤北京煤矿机械有限责任公司 - 企查查
2023年8月1日 企业地址位于北京市房山区城关镇矿机路1号，所属行业为通用设备制造业，经营范围包含：制造、加工液压支架、机械设备、金属结构、金属材料、矿山机械、新能源原动设备、环境保护专用设备、液压动 中国煤矿机械装备有限责任公司. 装备公司党委举办主题教育理论学习专题研讨会. 装备公司党委组织收看中国共产党第二十次全国代表大会. 装备公司党委召开主题教育领导班子调研 中国煤矿机械装备有限责任公司北京市级. 增材制造用高性能粉末制备关键技术及其应用. 北京市科技进步奖. 二等奖. 年产千万吨特厚煤层超长综放工作面支护技术及设备研究. 北京市科学技术奖. 三等奖. 极薄煤层 中煤北京煤矿机械有限责任公司 资质荣誉 - CHINACOAL
中煤北京煤矿机械有限责任公司 - 爱企查
2023年8月4日 电话： 010-8136****. 邮箱： c****@163. 官网： cbmjinacoal. 地址： 北京市房山区城关镇矿机路1号. 简介：. 中煤北京煤矿机械有限责任公司成立 中煤张家口煤矿机械有限责任公司. 中煤张煤机公司召开主题教育领导班子调研成果交流研讨会暨改革发展推进会. 河北省工信厅副厅长马越一行到中煤张煤机公司调研. 技能竞赛展 中煤张家口煤矿机械有限责任公司北京煤矿机械厂: 主要经营产品： 制造、加工液压支架，单体支柱，装煤机，洗选设备，配件，集装箱，法兰盘、氧气、二氧化碳；销售钢材、建筑材料；经营本企业自产产品、成 北京煤矿机械厂 - 顺企网{书名}《北京煤矿机械厂志》 👦{作者｝北京煤矿机械厂 🌺{志书简介｝本志详细记载了北京煤矿机械厂大致情况，1958到1994年来发生的大事件。 厂子的基本建设，厂的设计选址，建厂的组织与施工，扩建。北京煤矿机械厂志 - 百度百科CN104948211A CN201510287282.2A CN201510287282A CN104948211A CN 104948211 A CN104948211 A CN 104948211A CN 201510287282 A CN201510287282 A CN 201510287282A CN 104948211 A CN104948211 A CN 104948211A Authority CN China Prior art keywords net flexible net wire rope flexible support Prior art date 2015-05-31 CN104948211A - 大采高末采挂网工艺 - Google Patents
Three-way type pilot operated check valve - Google Patents
The invention discloses a three-way type pilot operated check valve. The three-way type pilot operated check valve comprises a valve cover connected with a valve body, a valve cavity is defined by the valve cover and the valve body, a piston and an ejector rod with a spring are arranged in the valve cavity, the piston is connected with one end of the CN1309981C CNB2004100012096A CN200410001209A CN1309981C CN 1309981 C CN1309981 C CN 1309981C CN B2004100012096 A CNB2004100012096 A CN B2004100012096A CN 200410001209 A CN200410001209 A CN 200410001209A CN 1309981 C CN1309981 C CN 1309981C Authority CN China Prior art keywords CN1309981C - 释放阀 - Google PatentsCN107701211B CN201711118526.XA CN201711118526A CN107701211B CN 107701211 B CN107701211 B CN 107701211B CN 201711118526 A CN201711118526 A CN 201711118526A CN 107701211 B CN107701211 B CN 107701211B Authority CN China Prior art keywords networking net volume lapping net volume Prior art date 2017-11-14 CN107701211B ... - Google Patents
CN107676117A - 液控单向阀 - Google Patents
CN107676117A CN201710862667.6A CN201710862667A CN107676117A CN 107676117 A CN107676117 A CN 107676117A CN 201710862667 A CN201710862667 A CN 201710862667A CN 107676117 A CN107676117 A CN 107676117A Authority CN China Prior art keywords valve liquid pass pass hole pocket hydraulic control Prior art date
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CN1309981C - 释放阀 - Google Patents
CN1309981C CNB2004100012096A CN200410001209A CN1309981C CN 1309981 C CN1309981 C CN 1309981C CN B2004100012096 A CNB2004100012096 A CN B2004100012096A CN 200410001209 A CN200410001209 A CN 200410001209A CN 1309981 C CN1309981 C CN 1309981C Authority CN China Prior art keywords US6827096B1 US10/787,718 US78771804A US6827096B1 US 6827096 B1 US6827096 B1 US 6827096B1 US 78771804 A US78771804 A US 78771804A US 6827096 B1 US6827096 B1 US 6827096B1 Authority US United States Prior art keywords fitting section diameter fitting larger diameter valve element larger Prior art date 2003-06-23US6827096B1 - Relief valve - Google PatentsCN107701211A CN201711118526.XA CN201711118526A CN107701211A CN 107701211 A CN107701211 A CN 107701211A CN 201711118526 A CN201711118526 A CN 201711118526A CN 107701211 A CN107701211 A CN 107701211A Authority CN China Prior art keywords networking net volume lapping net volume Prior art date 2017-11-14 CN107701211A ... - Google Patents
DE102004012214B4 - Entlastungsventil - Google Patents
Entlastungsventil, das arbeitet, wenn ein Innendruck auf oder über einen vorgegebenen Wert ansteigt, wobei ein komprimiertes Fluid im Inneren zur Außenseite abgegeben wird, enthaltend: einen äußeren zylindrischen Schaft (37, 62), der zwei offene Enden aufweist, wobei der äußere Schaft einen Abschnitt (66, 98) größeren Innendurchmessers und The invention belongs to the technical field of a mine support device, and particularly relates to a stepped-type support of a top paving mesh laneway blast advancement face, which mainly solves the problem of lacking the blast advancement face support device in the process of coal mining. The technical scheme provided by the invention is as follows: the CN102226409A - Stepped-type support of top paving mesh 종래보다 슬림형인 릴리프 밸브를 제공한다. 본 발명의 릴리프 밸브에서는, 통형상의 아우터 스템의 내부에 통형상의 가동밸브체가 끼워맞추어지고, 그들 아우터 스템 및 가동밸브체의 내측을 함께 관통한 연통공간이 형성된다. 이것에 의해, 아우터 스템의 일단으로부터 연통공간(r)내에 흘러 ...KR20050000300A - 릴리프 밸브 - Google PatentsThe invention discloses a kind of bottom plates of thick seam slicing system to spread interconnection device and method automatically, the device includes multiple hydraulic supports of parallel getting working face, the tail portion of each hydraulic support is equipped with a back seat, net volume laying mechanism is respectively equipped on the CN107701211B - A kind of bottom plate of thick seam slicing The present invention proposes a kind of gib and device for layering, including rack, gib mechanism and automatic net laying mechanism；Gib mechanism includes: lower stable support, lower stable oil cylinder, lifting cylinder, connecting rod levelling mechanism, attachment base and connects top beam；Automatic net laying mechanism includes: CN108952779A - Gib and device for layering - Google Patents
CN108952779B - 临时支护与铺网装置 - Google Patents
CN108952779B CN201810856176.5A CN201810856176A CN108952779B CN 108952779 B CN108952779 B CN 108952779B CN 201810856176 A CN201810856176 A CN 201810856176A CN 108952779 B CN108952779 B CN 108952779B Authority CN China Prior art keywords net rolling net oil cylinder connecting rod bracket Prior art date 2018 A relief valve includes an outer stem including a larger diameter fitting section and a smaller diameter fitting section, a movable valve element fitted in both fitting sections so as to be moved between an opening position at the smaller fitting section side and a closing position at the larger fitting section side, a communication space extending through the stem and TW200500563A - Relief valve - Google PatentsFR2856485B1 FR0403086A FR0403086A FR2856485B1 FR 2856485 B1 FR2856485 B1 FR 2856485B1 FR 0403086 A FR0403086 A FR 0403086A FR 0403086 A FR0403086 A FR 0403086A FR 2856485 B1 FR2856485 B1 FR 2856485B1 Authority FR France Prior art keywords pressure valve valve pressure Prior art date 2003-06-23 Legal status (The FR2856485B1 - PRESSURE VALVE - Google Patents
DE102004012214B4 - Entlastungsventil - Google Patents
DE102004012214B4 DE200410012214 DE102004012214A DE102004012214B4 DE 102004012214 B4 DE102004012214 B4 DE 102004012214B4 DE 200410012214 DE200410012214 DE 200410012214 ...
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