国产一区二区三区在线播放,成年人看的黄色高清无码,久久久久久人妻一区精品,被黑人强伦姧人妻完整版

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 FormulaF2                       Molecular Weight38

Item

Index

F2 content (volume fraction)/ 10-2               

(20)

N (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

久久久精品国产sm调教网站| 4444亚洲人成无码网在线观看| 啊灬啊别停灬用力啊老师| 亚洲精品无码久久久久| 国产女人aaa级久久久级| 国产女主播精品大秀系列| 最近韩国电影高清免费观看hd| 脱了内裤猛烈进入a片视频免费| 久久久久久亚洲精品美女| 免费试看男人大鸡巴操逼 | 国产精品国产一级国产av| 中文无码成人免费视频在线观看| 91美女福利网站在线观看| 久久久久久A片免费播放| 欧美人与动牲交xxxxbbbb| 黑人大荫蒂高潮视频| 超碰在线公开内射日韩版| 麻豆文化传媒精品幻星辰| 免费无码av片在线观看软件| 爱爱爱爱看视频| 粉嫩AV久久一区二区三区| 香蕉久久夜色精品国产| 乳欲人妻办公室奶水在线电影国产 | 亚洲精品久久久口爆吞精| 中文字幕人成人乱码亚洲影| 中文无码av人妻久久系列| 国产精品久久久久婷婷五月色婷婷| 亚洲区自拍偷拍一区二区| 国产精品一区二区 尿失禁| 清冷医生h打开腿乖听话| 欧美午夜精品免费理论片| 色五月丁香六月欧美综合| 国产成人精品三级麻豆| 国产精品一区二区男人吃奶| jk白丝污免费在线观看| 337p大胆啪啪私拍人体| 99在线精品免费视频九九视| 蜜臀av一区二区三区人妻| 西西人体大胆啪啪私拍色约约| 欧美性潮喷xxxxx免费视频看| 55夜色66夜色国产精品视频|