แบบมีลูกบอลลอย
Temperature switch
Fittings / Vent plug
“SHURE” Vent plug waterproof breathable valve PP/PC/PA M12x1.5
Level transmitter
Acrylic plastic flow meter
Flow indicator / Flow sight glass
“SHURE” Pressure vessel sight glass with scraper, scraper, wiper, can remove water and fog








