PU Chemical Grouting Khoom
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Chemical grouting khoom
PU waterproof txheej yog dav siv nyob rau hauv civil architecture, subway project, high transit railway, choj thiab lwm yam uas tsis yog-tshuaj waterproof cheeb tsam.
PU waterproof txheej yog dav siv nyob rau hauv civil architecture, subway project, high transit railway, choj thiab lwm yam uas tsis yog-tshuaj waterproof cheeb tsam.