一是制作工艺不同，二是衬塑厚度不一样。内衬塑PE复合管是在钢管内衬PE管材，PE管材壁厚一般不低于4mm。而内涂衬塑PE复合管，则是在钢管内进行PE喷涂，厚度很薄，一般小于1mm。
The first is the different manufacturing technology, and the second is the different thickness of the plastic lining. PE-lined composite pipe is lined with PE pipe in steel pipe. The wall thickness of PE pipe is not less than 4 mm. The inner coated PE composite pipe is sprayed with PE in the steel pipe, and the thickness is very thin, generally less than 1 mm.
用户可以根据自己的工况情况选择衬塑PE复合管或涂塑PE管。
Users can choose plastic-lined PE composite pipe or plastic-coated PE pipe according to their working conditions.