Plumbers caulk joints in pipe with lead, string or a caulking compound.
管子工用铅、绳子或专用填隙材料使管子的接头不漏水。
Objective to find the harmful chemical components in the solvent of PSZ? 1 caulking compound which has led to an acute toxic accident.
目的了解导致急性中毒事故的PS Z1堵漏剂溶剂有害化学成分。
Objective to find the harmful chemical components in the solvent of PSZ? 1 caulking compound which has led to an acute toxic accident.
目的了解导致急性中毒事故的PS Z1堵漏剂溶剂有害化学成分。
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