ISO certificate HDPE pipe SDR17 SDR21 plastic tube for water supply

• City water pipe network system.
• Underground hdpe water pipe SDR17  use in Urban and rural drinking water pipeline.Chemical industry, chemical fiber, food, forestry, printing and dyeing,pharmaceutical. light industry, paper-making, metallurgyIndustrial pipeline.
• Agricultural irrigation pipe.
• Postal and telecommunications lines Electric wire protection tube.

Dongli adheres to “human-oriented enterprise, strictly-required quality”

The company controls its quality carefully and strictly to form its own mature core competitiveness.

It continuously improves the production of new products and the level of technology in order to provideconsumers with the high quality of qualified products.

The company pays high attention and emphasizes implementation in all aspects of production which carries out the ISO9001:2008 strictly.At the same time, it increases detection efforts in the quality of the ancillary products and controls the quality strictly to pursuit zero defect and maintain the good reputation of the brand.

Customers’ satisfaction is our eternal pursuit!