Function : be applicable to the technics of hardening and tempering heating treatment of batch cast, forgeable piece and auto parts .

用 途：适用于批量性的铸、锻件、汽车配件的调质、正火热处理工艺。

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This paper deals with materials, design parameters. construction batch strength and design of mix proportion for underwater concrete cast in a major diameter cast in place pile.

论述大直径灌注桩水下浇注混凝土时的材料选择、设计参数选择、施工配制强度及配合比设计。

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