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Home › Global Industry Standards › GB/T 4754—2017 › D · 电力、热力、燃气及水生产和供应业 › 44 · 电力、热力生产和供应业 › 442 · 电力供应
GB/T 4754—2017 CN Group
442

电力供应

1
Class
Direct Subordinate Classifications · 1 Items
4420
电力供应
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Peer Categories
441 电力生产 442 电力供应 443 热力生产和供应
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