两个人的免费视频,宅男噜噜噜66在线观看,亂倫近親相姦中文字幕,天干天干天啪啪夜爽爽99,国产专区国产av,久久精品国产精品亚洲综合 ,国产自在线拍,女女女女女女bbbbbb毛,激情久久无码天堂,99久久免费看少妇高潮a片

煤礦用阻燃通信電纜mhyv mhjyv mhybv

產(chǎn)品用途:產(chǎn)品用于煤礦井下通信干線、配線和用戶線路。執(zhí)行標準 standards implemented:mt 81814-1999 型號、名稱及使用范圍

model、desc-riptions and use scope

型號
model 名 稱
desc-riptions 使 用 范 圍
use scope
mhyv 煤礦用聚乙烯絕緣聚氯乙烯護套通信電纜
pe insulated pvc sheathed communication cables for coal mines 用于平巷、斜巷及機電硐室
served in level,slanted channels and power house
mhjyv 煤礦用加強型線芯聚乙烯絕緣聚氯乙烯護套通信電纜
reinforced core pe insulated pvc sheathed communication cables for coal mines 用于機械損傷較高的平巷和斜巷
served in level and slanted channels where mechanical damage is frequent
mhybv 煤礦用聚乙烯絕緣鍍鋅鋼絲編織鎧裝聚氯乙烯護套通信電纜
pe insulated galvanized steel wire weave armored pvc sheathed communication cables for coal mines 用于機械沖擊較高的平巷和斜巷
served in level and slanted channels where mechanical damage is frequent
mhyav 煤礦用聚乙烯絕緣鋁-聚乙烯粘護層聚氯乙烯護套通信電纜
pe insulated al/pe binding layer pvc sheathed communication cables for coal mines 用于較潮濕的斜井和平巷
served in level and slanted channels with high humidity
mhya32 煤礦用聚乙烯絕緣鋁-聚乙烯粘結(jié)護層鋼絲鎧裝聚氯乙烯護套通信電纜
pe insulated al/pe binding layer steel wire armored pvc sheathed communication cables for coal mines 用于豎井或斜井
served in shaft and slanted shaft
電纜結(jié)構(gòu)示意圖
iiiustration of cable structure