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HD 21.3 S3:1995
Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V -Part 3: Non-sheathed cables for fixed wiring
HD 21.3 S3:1995/A1:1999
HD 21.3 S3:1995/FprA2:January 2008 (FINAL DRAFT)
HD 21.3 S3/A1-1999 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V.pdf
HD 21.3 S3-1995 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V.pdf
HD 21.3 S3-2008 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V.pdf
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太贵了
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一点儿就不值钱，只要是国外的标准，不管有没有价值，就要那么多金币和威望。哎！悲哀呀！
