• The electrical conductivity of Beijing dolomite and limestone has been studied by means of a high pressure apparatus of solid medium piston cylinder type.

    利用固体介质活塞圆筒高压容器测量白云岩石灰岩电导率

    dict.cnki.net

  • Main structured items are: JDQM full face mask, air supply valve, pressure regulator valve, backboard, pressure gauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.

    主要结构JDQM全面气阀减压阀背板压力表报警中压碳纤维复合气瓶

    www.sdjdxf.com

  • Main structured items are: JDQM full face mask, air supply valve, pressure regulator valve, backboard, pressure gauge, alarming whistle, medium pressure tube, carbon fiber composite cylinder, etc.

    主要结构JDQM全面气阀减压阀背板压力表报警中压碳纤维复合气瓶

    www.sdjdxf.com

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