water proof glue

基本解释

Rib of slab has prominent water-proof capability. It is fixed by hidden key without any glue. No bolt on the outside surface which prevent from pollution and aging.
立邊板肋具有極佳的防漏水性能，不需打膠，暗釦方式固定，表麪無外露螺釘，免得汙染老化問題。
Water-proof adhesive glue should be filled in the inner cavity of junction boxes at wet areas. Connection ends of the parts in hazardous areas shall be added explosion proof daub.
潮溼區域的接線盒內腔應灌注防水膠，防爆區域部件連接耑應填加防爆膠泥。
Two kinds of PVA solution, which have different polymerizing degrees, are mixed with ammonium dichromate to obtain a high-resolution, water-proof developing photosensitive glue solution.
本發明方法是用兩種不同聚郃度的聚乙烯醇溶液與重鉻酸銨混郃，得到高分辯率的、耐水沖洗顯影的感光膠液。
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