For instance, the lock you choose for an armoured door will be different from that for a wooden or aluminium door. Or, if the structure of the door is weak or damaged, it will inevitably be less secure, regardless of the type of lock you install.
Even the best lock in the world is useless if installed on a weak door. For example, some garage doors in apartment buildings are made of sheet metal that is so thin, it can easily be cut and manipulated, without even having to touch the lock.
http://www.evergoodlocks.com/m....echanical-lock/digit

Rotodynamic pumps use motion to generate more energy in a fluid and then cause the fluid to move along a pipe. Pumps such as these generally use a motor to turn a device that will increase pressure on a fluid or will increase the flow rate of the fluid using centrifugal force.
Different pumps can be used for different places and usages, for example, there are Slurry Pump, Dredge Pump, Gravel Pump, Froth Pump, Sump Pump and so on. And they are always equipped with other Pump Parts to get a expected effect.
http://www.delinpump.com/sump-pump/

Threaded inserts are typically used when the object in which a threaded fastener is being installed is made of a soft material. For hard materials, a screw or bolt can be often driven into the object without the need for a threaded insert. For soft materials, however, driving a screw or bolt directly into the object can damage it. A simple solution is to use a threaded insert. The threaded insert is placed inside the object, after which the threaded fastener is driven into the insert.
http://www.ctri-eng.com/profil....e-cutters/cermet-for

Packaging: Corrugated plastic sheets are favorable to make into a perfect packaging material. Henceforth their strength, durability and soil resistance makes them an easy alternative to paperboards and wooden package material. Comparatively, they are cheap to afford and don't tear off but can be easily cut through a knife. Many grocery stores, book sellers, distillers, gift sellers use corrugated boxes for packing different materials.
http://www.corrugatedplasticpr....oduct.com/plastic-si

Changeover on the capping machine will normally consist of simple hand adjustments to the cap chute, the height and width of the spindle wheels and gripper belts and some adjustment to the elevator or bowl. In some cases, where a wide variety of caps are being run on one machine, some tool based changes may be necessary, such as changing out a stabilizer or adding a second gripper belt.

http://www.chinacapmachine.com/plastic-cap/