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GBJ 143-1990 standard english preview version PDF file download

GB Standard Code GBJ 143-1990
Standard Category China National GB Standards
GB Standard English Title Standard for protective spacing of radio interference from overhead electric lines,substations to television transposer station and retransmitting station
GB Standard Chinese Title 架空电力线路、变电所对电视差转台、转播台无线电干扰防护间距标准
Chinese Version Price $15 USD per 50 pages
English Translation Price About $15  per 1 page; Inquire us for detail price

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