亚洲精品乱码久久久久久日本,国产特黄级aaaaa片免,国产亚洲精品久久久久久入口,午夜性色福利在线观看视频

歡迎來(lái)濟(jì)南壹諾包裝有限公司網(wǎng)站!在線留言
  • 全國(guó)電話服務(wù)熱線:400-801-0899

當(dāng)前位置:首頁(yè) > 新聞中心 > 行業(yè)新聞
如何識(shí)別外賣打包袋有沒(méi)有毒?
來(lái)源:www.mingmingda.com 發(fā)布時(shí)間:2022-12-31 瀏覽次數(shù):122
外賣打包袋是人們生活中經(jīng)常要用到的,但是使用的時(shí)候也一定要小心,有些外賣打包袋是有毒的,如何識(shí)別哪種膠袋有毒,哪種無(wú)毒呢?
Take away bags are often used in people's lives, but you must be careful when using them. Some take away bags are toxic. How to identify which plastic bags are toxic and which are non-toxic?
1、用手摸:用手撫摸塑料包裝袋表面,很光滑是無(wú)毒的;發(fā)粘、發(fā)澀、有蠟狀感的是有毒的。
1. Touch with hands: touch the surface of the plastic packaging bag with hands, which is very smooth and non-toxic; Sticky, astringent and waxy are poisonous.
2、用耳朵聽(tīng):用手使勁抖動(dòng)塑料袋時(shí),發(fā)出清脆聲表明是無(wú)毒塑料袋;而聲音小而悶的便是有毒塑料袋。
2. Listen with your ears: When shaking the plastic bag with your hands, it makes a clear sound indicating that it is non-toxic plastic bag; The noise is small and stuffy is toxic plastic bags.
3、肉眼察法:無(wú)毒塑料袋呈白色,透明或微透明,質(zhì)地均勻;有毒塑料袋則為彩色或雖為白色,但透明度差,較渾濁,塑料表面拉伸不均勻,有小顆粒。
3. Visual inspection: non-toxic plastic bag is white, transparent or slightly transparent, with uniform texture; Toxic plastic bags are colored or white, but their transparency is poor and turbid. The plastic surface is unevenly stretched with small particles.
4、用鼻子聞膠袋:無(wú)毒的塑料包裝袋是無(wú)味的;有刺激氣味或味道不正常的是有毒的。
4. Smell plastic bags with your nose: non-toxic plastic bags are tasteless; Those with pungent smell or abnormal taste are toxic.
外賣打包袋
5、沉水試驗(yàn)法:把塑料袋放到水里,用手將其按到水底,稍等片刻,浮出水面的即為無(wú)毒塑料包裝袋,沉在水底的即是有毒塑料包裝袋。
5. Submerged test method: put the plastic bag in water, press it to the bottom with your hand, wait for a moment, and the non-toxic plastic packaging bag will emerge from the water, and the toxic plastic packaging bag will sink to the bottom.
6、燃燒法:無(wú)毒的塑料袋易燃,火焰尖端呈黃色,局部呈青色,燃燒時(shí)像蠟燭淚一樣滴落,有石蠟味;有毒的塑料袋不易燃燒,離火即熄,火焰尖端呈黃色、或是黑色,底部呈綠色,軟化能拉絲、還可以聞到一股刺鼻的味。
6. Combustion method: non-toxic plastic bag is flammable, the tip of the flame is yellow, and part of it is cyan. When burning, it drops like candle tears, with a wax smell; The poisonous plastic bag is not easy to burn, and will extinguish when it is away from the fire. The tip of the flame is yellow or black, and the bottom is green. It can be softened and brushed, and you can smell a pungent smell.
如何識(shí)別外賣打包袋有沒(méi)有毒?我們就從以上6個(gè)方法中嘗試辨認(rèn),希望您在購(gòu)買批發(fā)時(shí)能夠有好的結(jié)果,更多相關(guān)事項(xiàng)就來(lái)我們的網(wǎng)站http://www.mingmingda.com咨詢看看吧!
How to identify whether the takeout bag is poisonous? We will try to identify them from the above six methods. We hope you can get good results when purchasing wholesale. More relevant matters will come to our website http://www.mingmingda.com Consult!
人妻系列无码一区二区三区| 色欲综合久久躁天天躁| 国内精品久久久久电影院| 久久午夜羞羞影院免费观看| 人妻有码精品视频在线| av大片在线无码永久免费| 亚洲色欲色欲www| 国产精品久久久久久久久久久免费看 | 在线亚洲高清揄拍自拍一品区 | 免费人成网ww555kkk在线| 中国精学生妹品射精久久| 欧美40老熟妇色xxxxx| 国产一区二区三区美女| 久青草国产在视频在线观看| 99久久无码私人网站| 久久激情日本亚洲欧洲国产中文| 无码中文av有码中文av| 亚洲精品国产综合99久久一区| 欧美精品免费观看二区| 亚洲有无码av在线播放| 久久精品无码一区二区三区免费 | 无套内射在线无码播放| 亚洲国产香蕉碰碰人人| 又黄又爽又色视频免费| 久久69国产精品久久69软件| 激情视频网站| 国产激情无码一区二区| 人妻av中文字幕一区二区三区| 九九在线中文字幕无码| 欧日韩无套内射变态| 日韩国产高清一区二区| 欧美成人看片一区二区| 影音先锋人妻每日资源站| 国产初高中生粉嫩无套第一次 | 亚洲婷婷五月综合狠狠app| 视频二区精品中文字幕| 亚洲国产精品日韩专区av| 免费毛片全部不收费的| 久久中文字幕无码专区 | 国产69精品久久久久人妻| 亚洲精品中文字幕无码av|