... in case of jam, there will be automatic alarming, automatic exhaust and automatic decompression.3) Using 245R/345R boiler plate or ... /18mm, other parts is 12mm.4) Automatic welding, processing according to standard of head of pressure vessel.5) With proprietary vacuum ... material can ensure the quality first .2. Welding:first automatic welding,then the labor welding,so absolute no any gap in the reactor ...