精品人妻无码专区视频|国精品无码一区二区三区左线|久久精品一区二区免费播放|中文字幕乱伦视频|亚洲自偷拍精品日韩另类|国产欧美日韩精品专区|中文字幕人成无码人妻综合社区

簡體中文 English
HomeAbout UsProductsCore TechnologyNewsThesisJoin UsContact Us

News

Company News Hot news
National Standard for PVC-U profiles for the doors and windows effective from May 1, 2018
Sources：本站　Date Time：2017-12-01 10:06:11　Views：Back
New National standard GB/T 8814-2017 for Unplasticized polyvinyl chloride (PVC-U) profiles for the doors and windows will be effective from May 1, 2018. It is stipulated that all PVC profiles shipped out from factories after May 1, 2018 must be lead free.

PreviousNo more

NextNo more

Share to： More
PrintRefreshTopBack
盐亭县| 古田县| 宜黄县| 连城县| 延边| 芜湖县| 基隆市| 象州县| 内丘县| 福州市| 响水县| 鹤峰县| 余庆县| 舞阳县| 萍乡市| 山阳县| 凤台县| 正定县| 长沙县| 如皋市| 南涧| 疏附县| 潞西市| 河北省| 垫江县| 鹿泉市| 乐陵市| 长宁区| 安溪县| 雷山县| 囊谦县| 冀州市| 北辰区| 东至县| 鲁山县| 永州市| 丹巴县| 昌宁县| 锦州市| 宝应县| 始兴县|