drill pipe gauge 钻杆螺纹规
Pipe-gauge 油面油尺管
Gauge pipe 仪表管 ; 胀力表管 ; 压力计导管 ; 油面指示管
oil gauge pipe 油位指示管
vacuum gauge pipe 真空压力计管
pipe-wall gauge 管壁厚度测量仪
oil-gauge pipe 油面指示管
pipe thread plug gauge 管螺纹塞规
pipe thread gauge 管螺纹量规
Connect the vacuum pump to the compound pressure gauge; open the compound pressure gauge and vacuum pump to vacuum the indoor unit and connecting pipe.
将真空泵连于复合压力表，打开复合压力表和真空泵对室内机和连接管抽真空。
Circulating water pump inlet pipe and outlet pipe should also install pressure gauge.
循环水泵的进水管和出水管上也应装压力表。
Metallurgical oxygen system pipe system, should use strict degreasing treatment, needle valve flange J29 Angle Pressure Gauge valve connection.
冶金系统中的氧气管路系统中，宜选用经过严格脱脂处理，法兰连接的针型阀。
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