色屁屁WWW影院免费观看入口,久青草无码视频在线观看,欧美人与动牲交zooz,人禽伦免费交视频播放

醫(yī)療衛(wèi)生

20個(gè)相關(guān)結(jié)果
顯示方式
全部
全部
產(chǎn)品編號(hào) 圖片 CAS No. 名稱及描述 價(jià)格 分子式 快速訂購(gòu)
BWYL021

空氣中二氧化碳

Carbon dioxide in air

NormAccurate 5-10%

需詢價(jià)
BWYL019

氮?dú)庵卸趸肌⒀鯕?/p>

Carbon dioxide and oxygen in nitrogen

NormAccurate 10%,20%

需詢價(jià)
BWYL018

氮?dú)庵幸谎趸肌⒀趸瘉喌?、氧?/p>

Carbon monoxide, nitrous oxide and oxygen in nitrogen

NormAccurate 0.2%,15%,20%

需詢價(jià)
BWYL017

氮?dú)庵醒趸瘉喌?、氧?/p>

Nitrous oxide and oxygen in nitrogen

NormAccurate 15-30%,20%

需詢價(jià)
BWYL016

氦氣中氧氣

Oxygen in helium

NormAccurate 20%

需詢價(jià)
BWYL015

氮?dú)庵幸谎趸?、氦氣、氧?/p>

Carbon monoxide, helium and oxygen in nitrogen

NormAccurate 0.2-0.3%,10%,20%

需詢價(jià)
BWYL014

氮?dú)庵幸谎趸?、氧?/p>

Carbon monoxide and oxygen in nitrogen

NormAccurate 100-900ppm,20%

需詢價(jià)
BWYL013

空氣中一氧化碳、氦氣

Carbon monoxide and helium in air

NormAccurate 0.2%,10%

需詢價(jià)
BWYL012

氮?dú)庵幸谎趸?/p>

Nitric oxide in nitrogen

NormAccurate 50-800ppm

需詢價(jià)
BWYL011

氧氣中氮?dú)?/p>

Nitrogen in oxygen

NormAccurate 6-8%

需詢價(jià)
BWYL010

氮?dú)庵醒鯕?/p>

Oxygen in nitrogen

NormAccurate 4-12%

需詢價(jià)
BWYL009

氮?dú)庵泻?/p>

Helium in nitrogen

NormAccurate 9-13%

需詢價(jià)
BWYL008

氮?dú)庵卸趸?、氧?/p>

Carbon dioxide and oxygen in nitrogen

NormAccurate 21-83%,4-12%

需詢價(jià)
BWYL007

空氣中二氧化碳

Carbon dioxide in air

NormAccurate 4-6%

需詢價(jià)
BWYL006

氧氣中氦氣

Helium in oxygen

NormAccurate 80%

需詢價(jià)
BWYL005

氮?dú)庵卸趸?/p>

Carbon dioxide in nitrogen

NormAccurate 3-10%

需詢價(jià)
BWYL004

氧氣中二氧化碳

Carbon dioxide in Oxygen

NormAccurate 3%-11%

需詢價(jià)
BWYL003

空氣中氧化亞氮

Nitrous oxide in air

NormAccurate 14-50%

需詢價(jià)
BWYL002

二氧化碳中氫氣

Hydrogen in carbon dioxide

NormAccurate 3%

需詢價(jià)
BWYL001

氮?dú)庵卸趸?、氫?/p>

Carbon dioxide and hydrogen in nitrogen

NormAccurate 5%,10%

需詢價(jià)
1
在線客服
訂購(gòu)熱線
15510934316
在線服務(wù)時(shí)間: 工作日 9:00-18:00