Using modern concrete technology process and the composition of materials by scientific selection and design of concrete mix to obtain good durability, high strength, and high-performance concrete.
使用现代混凝土技术工艺,通过科学选择混凝土组成材料与设计配合比,获得耐久性好、强度高的高性能混凝土。
The construction technology was introduced from the materials selection of vertical locking side of aluminum alloy roofing, lightning protection on roofing and the whole construction process.
从直立锁边铝合金屋面的材料选用、屋面防雷和施工全过程阐述该技术的施工工艺。
The selection of materials, processing technology, moulds, properties and application of transparent AS pipes are presented.
叙述了AS塑料透明管的原材料选择,产品性能,生产工艺,模具及其应用。
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