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War department, washington, june 16, 1932.Part one, communications, engineer field manual, volume ii, military engineering tentative, is published for the information.And guidance of all concerned.By order of the secretary of war.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.