1, hdpe tube, polyurethane foam insulation SY/standard: SY/T114-2000，SY/T115-2001
2, oil and gas with three layers polyethylene (3PE anticorrosion, 2) steel tube corrosion 2PE (PE),
Standard: SY/T0413-2002, DIN30670.
3, oil and gas with FBE (single layer of epoxy powder) steel corrosion, 2FBE (double layer of epoxy powder) steel corrosion, standard SY / : T0315-97, SY/T0315-2005,
4, water pipelines steel lining anticorrosive cement mortar, standard: CECS10:89,
5, epoxy coal tar glass cloth steel corrosion, standard: GB50268-97, SY/T0447-96,
6, water pipelines IPN8710 polymer nonpoisonous coating steel corrosion, standard SY / : T0457-2000,
7, epoxy coal tar, IPN8710, chlorinated rubber, polyurethane coatings, etc.
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