GB 50056-93.The title is CODE FOR DESIGN OF ELECTRICAL EQUIPMENT OF ELECTROHEAT INSTALLATIONS. This book is the English translation of Code for Design of electrical equipment of electroheat installations GB50056 — 93. It is the
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GB 50056-93.The title is CODE FOR DESIGN OF ELECTRICAL EQUIPMENT OF ELECTROHEAT INSTALLATIONS. This book is the English translation of Code for Design of electrical equipment of electroheat installations GB50056 — 93. It is the
Read more