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2. Cross-linked polyethylene - Wikipedia

   en.wikipedia.org/wiki/Cross-linked_polyethylene

   A cross-linked polyethylene (PEX) pipe. Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, insulation for high tension (high voltage) electrical cables, and baby play mats.

3. Plumbing - Wikipedia

   en.wikipedia.org/wiki/Plumbing

   Tubing, in particular copper, comes in rigid hard tempered joints or soft tempered (annealed) rolls. PeX and CPVC tubing also comes in rigid joints or flexible rolls. The temper of the copper, whether it is a rigid joint or flexible roll, does not affect the sizing. [27] The thicknesses of the water pipe and tube walls can vary.

4. Plastic pipework - Wikipedia

   en.wikipedia.org/wiki/Plastic_pipework

   Plastic Pipe lengths manufactured in Australia by extruding HDPE material.. Plastic pipe is a tubular section, or hollow cylinder, made of plastic.It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids.

5. Polyethylene - Wikipedia

   en.wikipedia.org/wiki/Polyethylene

   Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.

6. This cordless electric scrubber (down to $40!) is a must-have ...

   www.aol.com/this-cordless-electric-scrubber-down...

   The more stressed I get, the more I clean up around the house. I can't help it! With clutter, dirt and grime out of the way, I feel calm and in control.

7. The 6 most common headache types — and when to see a doctor

   www.aol.com/6-most-common-headache-types...

   "For those eight miserable years I had been treated, at some of our finest medical institutions, with medication for a type of headache that I do not have," she posted on Instagram in October.