This definition of screw is further reinforced by the consideration of the developments of fasteners such as Tek Screws, with either round or hex heads, for roof cladding, furniture self-drilling screws and furniture self-tapping screws for various metal fastening applications, roof batten screws to reinforce the connection between the roof batten and the rafter, decking screws etc.
http://www.zinhardware.com/fur....niture-screws/furnit

Knitting yarn is composed of twisted strands of fiber, which are known as plies when grouped together. These strands of yarn are twisted together (plied) in the opposite direction to make a thicker yarn. Depending on the direction of this final twist, the yarn will have either s-twist (the threads appear to go "up" to the left) or z-twist (to the right). For a single ply yarn, the direction of the final twist is the same as its original twist.
http://www.ugwool.com/yarn/knitting-yarns/

Coated steels are steel sheets that have a metallic and/or non-metallic coating to prevent rust and corrosion that humidity and contamination can cause on the steel.
Coated steel has an extra layer of metal, paint, or both to protect it from rust and wear. It is ideal for those who are looking for resistant, aesthetic, light, and cost-effective materials in industries such as construction, automotive, white goods, and other growing sectors.
http://www.lusteel.com/coated-steel/

If we design a building aesthetically good and also decorate it beautifully from inside, yet if its surrounding outside area is rubbish, then the beauty of the building will be considered reduced. As such the building must have a beautiful surrounding. This is achieved by landscape development.
http://www.lituodino.com/artificial-landscape/

There is static electricity from more than one source when dealing with powder coating application. As you probably already know powder coatings are electrostatically charged typically by a corona mechanism near the tip of the business side (outlet) of the spray gun. This works by very high voltage (80,000 to 100,000 volts) being delivered to the electrode.
http://www.joboncoating.com/el....ectrostatic-powder-c