... the case of inflatable rubber dam, it is completely flat, rubber dam, rubber dam lie not water resistance. ... pad 5.5 mm stainless steel (304#) suppress model BoltM20×500The 20 stainless steel(316#) productionAutomatic control cabinet AC switch, PUC, ... position ofFilling line equipmentRoots blower, pipeline(with 304#stainless steel),muffler, electronic pressure switch, pressure gage, decompression valve, ...