紫铜(tong)止(zhi)(zhi)水(shui)(shui)(shui)铜(tong)片是(shi)指主要用于水(shui)(shui)(shui)利工(gong)程中地板间、地板与(yu)闸(zha)墩(dun)间伸(shen)缩缝以(yi)(yi)防(fang)止(zhi)(zhi)地下水(shui)(shui)(shui)渗漏的(de)止(zhi)(zhi)水(shui)(shui)(shui)材料，适用于各类高级水(shui)(shui)(shui)工(gong)建筑的(de)基础止(zhi)(zhi)水(shui)(shui)(shui)、坝身止(zhi)(zhi)水(shui)(shui)(shui)、坝顶止(zhi)(zhi)水(shui)(shui)(shui)、廊(lang)道止(zhi)(zhi)水(shui)(shui)(shui)，以(yi)(yi)及坝体内孔(kong)洞止(zhi)(zhi)水(shui)(shui)(shui)、厂(chang)房止(zhi)(zhi)水(shui)(shui)(shui)、溢流(liu)面下横缝止(zhi)(zhi)水(shui)(shui)(shui)等(deng)。