国产精品免费看久久久7_一区二区三区日韩免费播放_中文字幕人妻第一区_日韩精品无码一区二区三区不卡_亚洲国产一区二区在线影视_欧美v日韩v国产在线_婷婷丁香五月亚洲六月_黄片无码在线观看

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
徐汇区| 陇川县| 平南县| 湟源县| 松溪县| 湖南省| 合川市| 册亨县| 洛隆县| 渭南市| 林周县| 商洛市| 旬邑县| 玛曲县| 札达县| 仁寿县| 文昌市| 邵阳市| 依兰县| 积石山| 大姚县| 内江市| 婺源县| 抚顺市| 电白县| 界首市| 靖州| 禄丰县| 虞城县| 固镇县| 成安县| 平安县| 长岛县| 阳高县| 南江县| 寿宁县| 灵台县| 新建县| 佛教| 河源市| 虎林市|