欧美日韩一区二区精品视频在线观看_欧美日韩国产综合视频在线看_欧美日韩国产色综合一二三四_日韩欧美国产偷亚洲清高_亚洲欧美日韩一区二区在线观看_最新日韩欧美不卡一二三区_国产精品福利在线观看免费不卡

上海/江蘇

CO 700ppm H2 1000ppm CO2 3000ppm/5000ppm CH4 100ppm C2H6 100ppm

N2

C2H4 100ppm C2H2 50ppm

CO 700ppm H2 1000ppm CO2 3000ppm/5000ppm CH4 100ppm C2H6 100ppm

Ar

C2H4 100ppm C2H2 50ppm O2 5.0% N2 5.0%

浙江

CO 500ppm H2 500ppm CO2 2000ppm CH4 100ppm C2H6 100ppm C2H4 100ppm

N2

C2H2 50ppm

福建

CO 200-250ppm H2 800-1000ppm CO2 5000ppm CH4 100ppm C2H6 50ppm

N2

C2H4 100ppm C2H2 50ppm O2 4.5%

CO 200-250ppm H2 800-1000ppm CO2 5000ppm CH4 100ppm C2H6 50ppm

Ar

C2H4 100ppm C2H2 50ppm O2 4.5% N2 4.50%

江西

CO 1000-1500ppm H2 1000-1500ppm CO2 2000-2500ppm CH4 50ppm C2H6 50ppm

Ar

C2H4 50ppm C2H2 50ppm O2 2-3% N2 2-3.5%

深圳

CO 800-1000ppm H2 1000ppm CO2 2000ppm CH4 100ppm C2H6 100ppm

N2

C2H4 100ppm C2H2 50ppm