亚洲夂夂婷婷色拍WW47,性做久久久久久免费观看,夜夜高潮夜夜爽夜夜爱爱,精品亚洲欧美无人区乱码

Welcome to Fujian Yongjing Technology Co., Ltd. the website!

Contact us

Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept. 
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755


Products

perfluoropropane

Quality standard:

Molecular formula:C3F8                                 Molecular weight: 188

ingredients

content

unit

perfluoropropane (C3F8)  

≥99.99

%V

air

≤30

ppmv

carbon dioxide (CO2)

≤2

ppmv

moisture (H2O)

≤10

ppmv

Other Halocarbon

≤50

ppmv

Acidity (HF)

≤0.1

ppmw

 

Character:  
Colorless inflammable gas, low toxicity gas
To use:  
In semiconductor industry, it is used by mixing with oxygen gas as plasma etching material; in medical industry, it is used as ultrasonic contrast agent; in R-218, it is used as ingredient of refrigeration mixture.
Storage:  
Should be preserved in cool and ventilated non-flammable gas used warehouse under temperature no higher than 30℃; keep it away from fire and heat source; separate with oxidizing agent; please prepare emergency processing facilities.
Transportation:  
Up to standards of gas cylinder safety supervision regulations
Storage:  
In special handling clean and dry gas cylinder; volume is 40L, 12.5L, 10L, 8L, 4L or on customer demands

【Back】

Copyright(C)2017,Fujian Yongjing Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice

国产精品污www在线观看| 午夜精品久久久久久久99热| 免费播放一区二区三区| 国产400部av国片免费| 国内精品伊人久久久久777| 欧美性xxxxx极品少妇| 亚洲精品无码午夜福利中文字幕 | 国外精品视频在线观看免费| 精品丝袜av在线观看视频| 亚洲综合无码一区二区三区不卡| 一路向北在线观看完整高清BD| 亚洲乱码一区二区三区在线观看 | 精品香蕉99久久久久网站 | 大肉大捧一进一出好爽视频| 在线永久看片免费的视频| 亚洲国产精品成人天堂| 看全色黄大色大片免费久久| 亚洲小说春色综合另类| 久久夜色精品国产嚕嚕亚洲av| 久久精品国产亚洲av麻豆图片| 亚洲午夜精品久久久久久浪潮| 亚洲综合久久成人a片| 国产老熟妇精品观看| 亚洲av无码国产一区二区三区| 国产精品无码v在线观看| 欲妇荡岳丰满少妇a片24小时| 少妇色情喷水又紧又爽小说 | 天堂无码人妻精品一区二区三区| 亚洲丰满多毛的隂户| 久久亚洲美女精品国产精品| 亚洲 中文字幕 日韩 无码| 国产偷窥盗拍丰满老熟女| 国产+成+人| 精品人妻人人爽久久爽av| 人人爽久久久噜噜噜婷婷| 国产免费av| 亚洲第一aaaaa片| 国产chinasex对白videos麻豆 | 日本特黄特色aaa大片免费| 久久久久久精品免费免费999| 国产又色又爽又刺激在线观看 |