Oriental Instruments & Dongyi Technology

Targeting global production of helium leak detection equipment; independently developed quality flow meter filling machines, with customers spread across various domestic refrigeration enterprises, enjoying high recognition in the industry.

Honorary Qualifications


Explosion-proof refrigerant charging machine CNEx23.3635X

Explosion-proof refrigerant charging machine CNEx23.3635X

Explosion-proof refrigerant charging machine CNEx23.3634X

Explosion-proof refrigerant charging machine CNEx23.3634X

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The main products of our company now include refrigerant filling machine, explosion-proof filling machine, vacuum purification filling machine, special power supply, helium inspection equipment, etc.

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