Joint sealant has outstanding hydro-sealing ability. It is resistant to most chemicals at a wide range of temperature and pressures from full vacuum to medium level.
具有优异的流体密封性能，可在较宽的温度范围、压力范围和腐蚀性介质下可靠使用。
A pallet full of sheeting is placed at the loader end and a single sheet is picked up with a vacuum apparatus (equipped with a tapper and air-jetter).
整整一货板的板材放在装载装置的末端，单一的板材放在真空仪器上(配备了开孔器和空气喷洗器)。
The reasons for blockage of full-vacuum cast equipment are analysed. The protective measures and fault treatment are all introduced.
分析了全真空环氧树脂浇注设备发生堵塞故障的原因，介绍了预防措施及故障的处理方法。
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