久久爱综合久久爱久久爱,间谍过家家第二季在线观看免费,国产美女在线精品免费观看网址,欧美+日本+国产+在线观看

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

High Quality Carbon Tetrafluoride

Quality Standard

Molecular FormulaCF4               Molecular Weight88.005

Item

Index

Carbon Tetrafluoride (CF4)

99.999

Oxygen(O2)  ppmv

1

Nitrogen(N2)   ppmv

4

Moisture(H2O)     ppmv

1

Carbon Dioxide(CO2)    ppmv

1

Carbon Monoxide(CO)  ppmv

0.3

Acidity Express(as HF) ppm/m

0.1

Fluorocarbon   ppmv

1

Sulphur hexafluoride(SF6)  ppmv

1

Impurities   ppmv

10

Properties
Carbon Tetrafluoride is colorless,odorless,non-combustible and high compressibility gas in normal conditions;high volatility;most stable organic compound;insolubility in water.
Application
Carbon Tetrafluoride is one of the largest comsumption kinds of plasma etching gases in microelectronics industry at present,also widely used in surface cleaning of electronic device,production of solar cell,aser technology,gas phase insulation,subzero refrigeration,leakage inspection agent and detergent inprinted circuit production.
Storage
In cool,and ventilated storehouse. Temperature should not be higher than 30℃ in storehouse. Keep from fire and heat. Avoid direct sunlight. It should be kept away from inflammable materials.
Transport
Level one inorganic sour corrosion substance.
Packing
It is filled in seamless steel cylinder and aluminium alloy container. It is normally filled in 47L,40L,10L,8L seamless steel cylinder. The pressure is 12.5MPa. Also can be filled on consumers’ requests.

【Back】

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

无码日韩人妻AV一区二区三区 | 18禁无遮挡无码网站免费| 亚洲 欧美 中文 日韩| 久久人人爽人人爽人人片AV高清| 漂亮人妻被中出中文字幕| 无码精品视频一区二区三区| 护士的色诱2在线观看免费| 亚洲 欧美 国产 日韩 字幕| FREE性VIDEOXXX欧美| 欧美 亚洲 另类 偷偷 自拍| 日本一欧美一欧美一亚洲| 亚洲AV成人一区二区三区AV| 亚洲av无码一区二区三区牲色| 亚洲中文字幕在线| 日韩蜜桃一区二区三区| 大帝av在线一区二区三区 | 久久精品国产亚洲AV无码偷窥| 欧美疯狂做受xxxx高潮小说 | 久久日产一线二线三线| 国产亚洲精品无码专区| 欧美又大又色又爽AAAA片| 国产精品久久久久久久9999| 五月槐花香电视剧全集免费| 久久久久久精品免费免费WEI| 18禁无遮挡无码国产免费网站 | WWW性久久久COM| 中文字幕人妻无码一区二区三区 | 国产精品人妻无码久久久| 给我免费播放片在线| 国产va免费精品观看| 亚洲熟妇丰满多毛xxxx| babesvideos性欧美| a级毛片免费网站| 欧美精产国品一二三产品区别在哪| 精品无码国产av一区二区| 国产精品一区二区在线观看| 亚洲国产精品日韩AV专区| 精品香蕉99久久久久网站| 亚洲国产精品无码中文在线| 国产人妻高清国产拍精品| 最近中文字幕免费mv视频7|