Cixi Changhe Sanhe Metal Enclosure Limited is one of the leading 
odφ81-99mm transmitter enclosure, aluminum transducer enclosure,
 ultrasonic transducer enclosure, radar level transmitter enclosure,
 different pressure transmitter enclosure manufacturers and suppliers,
if you are looking for company or China factory,
 please feel free to contact us.
Aluminum die casting enclousres,The OD are between 81-99mm,
these enclosures are mainly used for flow transmitter,gas 
detectors,especially for the 1151 differential pressure transmitter,
ultrasonic flowmeter,turbine flowmeter.
And all of them are explosion-proof.    http://www.sanhe-enclosure.com