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Non-refillable series
  Steel cylinders
  Packaging
welded steel cylinders
Storage tank
Installation for pressure pipe-line
Pressure vessel
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>>CorporateCulture
Business philosophy: responsibility is the guarantee of our quality

personnel virtue:
honest、wise、diligent、just

Quality policy:

everybody's taking part in、overall management;
based on people、ensuring good quality;
keeping the promise to customer's demand;
keep on improving quality.

Quality objection:

The qualified rate of each product =100%;
qualified rate for welding inspection once>95%;  
customer satisfied rate>95%,
sevice satisfied rate>95%,
returned rate=0

Enterprise sprits:
go easy on facing pressure

Enterprise brand:
Zhejiang Donyang Chemical Machine Co.,Ltd