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Comprehensive detection

Stripping strength test: average stripping strength> 15N/mm blasting pressure test: blasting pressure ≥ 3 times nominal pressure oxidation induced time test: thermal stability ≥ 20min composite layer stability test: pressure resistance 100h, cut ring groove no rupture, no leakage tensile performance test: PE solid pipe elongation average ≥ 400% (350% national standard) weather resistance test: -20℃ ~ -40℃ normal installation and use in extreme cold environment

Test=Safe

Comprehensive and harsh testing creates the perfect quality

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