Implementation standards of composite pipe: 

The standards implemented are the oil and gas industry standards of the People's Republic of China: SY/T 6662.1-2012 Non-metallic composite pipes for the oil and gas industry Part 1: Steel skeleton reinforced polyethylene composite pipes(Steel mesh skeleton reinforced polyethylene composite pipe) SY/T 6662.2-2020 Non-metallic composite pipes for the oil and gas industry Part 2: Flexible composite high-pressure conveying pipes  

A Steel wire wrapped skeleton reinforced polyethylene composite pipe(DN50-630mm)    

Polyethylene resin (polyethylene HDPE, heat-resistant polyethylene PE-RT, etc.) is used as the base material, the steel mesh skeleton is the reinforcement, and the extruded steel skeleton reinforced polyethylene composite pipe is used.(Steel wire wrapped skeleton reinforced polyethylene composite pipe)

B Flexible composite high-pressure conveying pipe(DN50-150mm) 

It uses polyethylene resin (polyethylene HDPE, heat-resistant polyethylene PE-RT, cross-linked polyethylene, polyvinylidene fluoride) as the base material, and polyester, aramid, steel wire rope, ultra-high molecular weight polyethylene filament, etc. as reinforcements. Extruded flexible composite high-pressure conveying pipe.