... grout 灌浆;灰浆;水泥浆;浆液 grout pipe 灌浆管 grout sleeve 灌浆套筒 ...
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grout pipe system 灌浆管系统
grout vent pipe 灌浆排气管
grout t vent pipe 灌浆排气管
grout t pipe 灌浆管
secondary grout feeding pipe 二次进浆管
sleeve valve pipe grout injection 袖阀管注浆
grout injection through perforated pipe 花管注浆
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The valve at the bottom of auger can prevent drilling bits entering hollow pipe during operation. When drilling pipe is taken out and concrete grout is injected, the valve will be opened.
螺旋钻头底部阀门防止钻进过程中钻屑进入到空心的混凝土管中，当钻杆提出同时混凝土浆注入时，钻杆底部的阀门将被打开。
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