ST-2052无石棉垫片获得饮用水认证KTW，W270
WOSIST-2052WUSHIMIANDIANPIANYUJINRITONGGUOLEOUZHOUDVGWJIGOUDERENKE。HUODELEOUZHOUYINYONGSHUIFANGMIANRENZHENGZHENGSHU。
BAOKUODVGW KTW，KTW W270。
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KTWZHENGSHU W270ZHENGSHU
