国产成人精品综合在线观看,亚洲激情网站,国产免费一区二区三区,伊人网在线视频,久久综合亚洲鲁鲁五月天欧美,中文字幕免费视频,91香蕉国产在线观看免费永久

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
新竹县| 会同县| 景谷| 浏阳市| 怀宁县| 肃宁县| 开化县| 和平区| 神木县| 苍梧县| 梧州市| 亚东县| 高台县| 凤台县| 云霄县| 合水县| 长治县| 徐水县| 乌兰浩特市| 祁阳县| 临城县| 昆明市| 中方县| 石林| 从江县| 湟中县| 乌鲁木齐市| 喜德县| 光泽县| 礼泉县| 瑞金市| 临沭县| 洱源县| 纳雍县| 南雄市| 福建省| 迭部县| 新河县| 安西县| 江阴市| 乾安县|