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Specifications (mm): de50-de800

Specifications (mm): de63-de500

Specifications (mm): de63-de630

Specifications (mm): de50-de800

Specifications (mm): de50-de630梦见被性侵犯是什么意思梦见被性侵犯是什么意思,美女的肌肌让人看见美女的肌肌让人看见,美国美女演员美国美女演员

Specifications (mm): de50-de630

Specifications (mm): de50-de630

After the pipe is welded by the electric heating ribbon, the gap formed between the ends of the electric heating ribbon is filled and filled by means of extrusion filling welding, and then welded by the reinforcing electric hot melt belt.

PE solid wall pipe connection and maintenance, wire mesh skeleton reinforced polyethylene composite pipe is connection and maintenance, steel skeleton plastic composite pipe connection and maintenance, multi-reinforced steel-plastic composite pressure pipe connection and maintenance, large-diameter winding structure pipe wall Connection and maintenance