人与动人物XXXX毛片老司机,日韩精品少妇无码受不了,日本强伦姧人妻69影院
<ins id="7k38p"><button id="7k38p"></button></ins>
<ins id="7k38p"><form id="7k38p"><xmp id="7k38p">
<form id="7k38p"></form>
<xmp id="7k38p"><form id="7k38p"></form>
<xmp id="7k38p">
<xmp id="7k38p"><form id="7k38p"><form id="7k38p"></form></form><xmp id="7k38p">
<xmp id="7k38p"><form id="7k38p"></form>
<xmp id="7k38p"><form id="7k38p"></form>
<xmp id="7k38p"><form id="7k38p"></form><form id="7k38p"></form>
<xmp id="7k38p"><xmp id="7k38p"><xmp id="7k38p"><form id="7k38p"><button id="7k38p"></button></form>
<xmp id="7k38p"><form id="7k38p"></form>
<xmp id="7k38p"><form id="7k38p"></form> <xmp id="7k38p"><form id="7k38p"></form>
<xmp id="7k38p"><button id="7k38p"></button>
<xmp id="7k38p">
<xmp id="7k38p"><form id="7k38p"><form id="7k38p"></form></form>
<xmp id="7k38p"><button id="7k38p"><ins id="7k38p"></ins></button><xmp id="7k38p"><form id="7k38p"><form id="7k38p"></form></form><xmp id="7k38p"><button id="7k38p"><button id="7k38p"></button></button>
<xmp id="7k38p"><form id="7k38p"><button id="7k38p"></button></form>
返回上一級

C2F6

產品描述

產品:C2F6,六氟乙烷,又稱全氟乙烷,化學式:C2F6  

分子量:138.01

結構式:image.png

產品規格:5N

包裝容器:小鋼瓶、Y瓶高壓鋼瓶容器

應用:應用于半導體領域,用作絕緣氣、等離子蝕刻劑,高介電強度泠卻劑。

產品詢盤

人与动人物XXXX毛片老司机,日韩精品少妇无码受不了,日本强伦姧人妻69影院