亚洲精品无码少妇30p,久久久久久精品中文字幕,午夜男女爽爽影院a片免费,五月天亚洲综合

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

大鸡吧插我无码免费视频| 一本色道久88精品综合| 99久久国产综合久久精品| 一区二区三区av中文字幕| 国产精品美女久久久18| 黑人与人妻无码中文视频| 无码h黄肉3d动漫在线观看| 9久热这里只有精品绯色| 亚洲 成人 av 自拍| 无码区免贽观看一级黄片| 狠狠做深爱婷婷综合一区| 久热久热这里面全是精品| 在线 日韩 中文 字幕| 无码精品人妻77777| 91精品久久久中文字幕| 加勒比无码Av一区二区| 亚洲欧美自拍偷拍第一页| 日韩欧美一区二区三区人妻| 国产成人AV午夜在线看| 国产成人精品999在线| 国产激情刺激色区在线观看| 看日大屄的视频在线观看| 黄片视频在线看| 国产精品专区第102页| 亚洲熟妇无码久久精品疯| 尤物视频在线观看网站入口| 久久久精品国产四虎影视| 久热在线这里只有精品视频| 天天日狼人伊人| 日韩一区二区三免费高清| 国产亚洲欧美在在线人成| 伊人色综合久久天天网图片| 天天射影院天天射综合网| 亚洲夜夜欢一区二区三区| 日韩熟妇人妻AV无码区| 51午夜 精品免费福利| 国产情侣色综合久久有码| 在线欧美小视频| 日本A∨东京热高清一区| 午夜福利在线观看亚洲一区| 一本清日本在线视频精品|