同性两男a片黄在线观看,午夜大乳房视频在线播放,在线观看国产一区二三区,青青操视频免费在线观看

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

Fluorine-Nitrogen Gas Mixture

Quality StandardGB/T 26251-2010

Molecular FormulaF                      Molecular Weight38

Item

Index

F2 content (volume fraction)/ 10-2               

(20)

N2  (volume fraction)/ 10-2                                        

(80)

O2  (volume fraction)/ 10-2                               

≤0.08

CF4  (volume fraction)/ 10-2                                    

≤0.03

HF  (volume fraction)/ 10-2                                        

≤0.50

Properties
Melting point:-218℃, boiling point:-187℃, relative density(moisture=1)1.14(-200℃), soluble in water, relative density(air=1)1.70, saturated vapor pressure(kpa):101.32(-187℃), critical pressure(MPa):5.57
Application
Important material in fine chemical industry;widely used in electronic,laser technique and pharmaceutical industry
Storage
Avoid direct sunlight and keep away from explosive and metal powder
Transport
Be careful and be away from residential quarter
Packing
Steel gas cylinder,and net weight is 40L,or according to requirements

【Back】

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

董小宛 果冻传媒 麻豆| 无码国产色欲xxxx视频| 美女黄页网站免费在线观看| 亚洲精品中文字幕原千岁| 国产伦理片大全在线观看| 成人青娱乐激情在线视频| 人妻少妇精品视中文字幕| 三级片现频在线| 日韩精品久久久久一区二区| 一二三国产亚洲精品电影| 久久久久久高潮一级毛片| 欧美一区精品视频一二区| 精品国产亚洲欧美自拍一区| 亚洲精品成人片在线观看| 久久精品免视看国产成人不卡| 青青青国产依人精品视频| 亚洲 另类 欧美 日韩| 国产精品亚洲精品日韩己方| 久久亚洲欧美日本精品品| 一本久道综合色婷婷五月| 国产自在自线精品午夜视频| 丰满熟妇人妻av无码区| 伊人久久东京热中文字幕| 欧美乱码精品一区二区三区| 国产精品一区第二页在线| 亚洲精品色国语对白在线| 亚洲最大的偷拍视频网站| 伊人久久综合精品永久图片| 亚洲xxx国产| 手机看片精品一区二区三区| 国产日本精品视频在线观看| 中国一级特黄真人片久久| 欧美日韩亚洲国产精品 | 国产精品网站在线免费观看| 娇小萝被两个黑人用半米长| 国产精品1区| 日本电影丰满岳乱妇中字| 成人AV在线刺激免费看| 私密按摩师视频在线观看| 亚洲国产一区二区三区电影| 亚洲一级毛片在线观播放|