描述
接地体和接地网干线所用钢材规格可按下表选用,若接地电阻满足不了要求时,也可选用铜材。如果接地体和接地网干线安装在腐蚀性较强的场所,应根据腐蚀的性质采取热镀锌、热镀锡等防腐措施或适当加大截面。
HP FAXITRON 43855A X-RAY SYSTEM MEDICAL X-RAY CABINET
J B 70 INTRAORAL X-RAY SYSTEM THAT IS SMARTER
HP 43855B X Ray system
X0020 Panoramic Corp. PC-1000 Pan X-Ray System
IDDC Model 1200 Porta Ray Portable X Ray System
L3 COMMUNICATIONS MODEL PX-M SERIES II X-RAY SYSTEM
HP 43855A X Ray System
Kodak 2100 Intraoral X-ray System
NEW Kodak 2100 DC Intraoral X-Ray System