INNER-DIAMETER:18cm
VOLUME:3L.4L
WORKING PRESSURE:80KPa
Safe
and reliable without the danger of explosionScientific design and dlegant
appearanceComply with national standard
in terms of safety featuresReasonable structure to reduce
friction,extended service life of the seal ring and cost-saving 
INNER-DIAMETER:22cm
VOLUME:4L.5L
WORKING PRESSURE:80KPa