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。
Cleveland Range PGM2502 Gas Pressure Steamer
IBM 7540 ROBOT
7 LAMBDA PHYSIK LASER TECHNIK POWER CONTROLS
Cleveland PGM2502 Steam Cooker
Motch and the Merryweather 2-8 Automatic Metal Saw
Cleveland Range PGM3002 Steam Cooker 300000 BTU
Cleveland Range PGM2502 Steam Cooker 250000 BTU