久久精品中文字幕无码|亚洲另类欧美综合久久图片区|久草免费在线观看|午夜精品在线观看|免费国产国语一级特黄a大片|尤物亚洲aⅴ无码精品色午夜|在线观看无码A视频

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
芷江| 洞头县| 晴隆县| 梅河口市| 洪江市| 永丰县| 盘锦市| 乃东县| 武乡县| 石阡县| 灯塔市| 罗江县| 绥中县| 宁蒗| 娄烦县| 樟树市| 临泽县| 吴旗县| 铁岭县| 汉川市| 丹寨县| 广安市| 花莲市| 溆浦县| 沐川县| 永济市| 扎兰屯市| 常德市| 石景山区| 海宁市| 连云港市| 名山县| 皋兰县| 怀柔区| 大同县| 抚顺市| 石楼县| 阿克陶县| 西畴县| 汉阴县| 新竹县|