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Submitted 2018-02-10 06:16:52 Cranes are commonly used by businesses for a variety of reasons. They are designed to lift heavy loads and move heavy objects high. However Cheap Jerseys Free Shiping , while cranes can be incredibly useful, they are also very expensive, most of the companies that offer construction services, as well as contractors, do not often purchase cranes. Instead Cheap Jerseys From China , they rent them for the duration of the project and then return them once the project comes to an end. If you are a contractor and working on a construction project, you might want to consider renting a crane in order to get the project done quickly and without spending too much money.

However, there are a few things to keep in mind when renting a crane. With so many companies currently offering crane service in Fort St John, it important for you to make sure that you choose the most affordable option depending upon the type of project. Here are a few things that you should know about renting a crane for any construction project.

Consider Several Options

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Arrange For Transportation

Another important thing that you need to think about before confirming the heavy equipment rental in Fort St John is the transportation of the crane. You have to make sure that you arrange for transportation of the crane and confirm whether the company will deliver the crane on the construction site or not. If the company cannot deliver the crane, or is charging an excessive transportation fee, you will need a crane operator and the necessary permits for transportation.

In most cases Cheap Jerseys , companies that offer heavy equipment on rent generally offer transportation as well. They will ask you about any obstructions or issues leading up to the site and then deliver the crane directly to your construction site. These are a few things that you should know before confirming the crane rental.>Difference Between SMD LED and COB LED Package
Posted by crescentled on January 21st, 2019
The Definition of COB
COB is the abbreviation of chip on board, which means chip on board packaging, a bare chip mounting technology. The semiconductor chip is placed on the printed circuit board, and the electrical connection between the chip and the substrate is realized by the method of lead wire seaming and covered with resin to ensure its reliability. The first step is to cover the placement point of silicon wafer with a thermally conductive epoxy resin (usually an epoxy resin doped with silver particles) on the surface of the substrate Wholesale NFL Jerseys , and then place the silicon wafer directly on the placement point, heating the silicon wafer until it is firmly fixed on the substrate. The second step is to establish an electrical connection directly between the silicon wafer and the substrate by wire bonding.

The Definition of SMD
SMD is the abbreviation for Surface Mounted Devices, which is one of the components using surface mount technology. In the initial stages of electronic circuit board production, via assembly was done entirely by hand. After the first automated machines were introduced, they could place some simple lead components Wholesale Jerseys Free Shiping , but complex components still required manual placement for wave soldering. Surface mounted components were introduced about twenty years ago and have started a new era. From passive components to active components and integrated circuits, they have finally become SMD and can be assembled by pick and place equipment. For a long time, it was a common thought that all the lead components could eventually be packaged in SMD LED.
In terms of the production process, COB LED packaging is basically the same with the traditional SMD production process, which has a systematic thermal resistance process of chip-solid glue-solder joint-solder paste-copper foil-insulation layer-aluminium. The systematic thermal resistance of the COB packaging is: chip-solid glue-aluminium. The labour and manufacturing costs of conventional SMD packaging account for about 15% of the cost of materials Wholesale Jerseys From China , while COB packaging only account for about 10%. The efficiency of COB LED package is much higher than SMD products, using COB packaging can save 5% of the labour and manufacturing costs.
The systematic thermal resistance of COB LED packaging is much lower than that of traditional SMD packaging, which greatly improves the useful life of LED. Through the method of patching, traditional SMD LED package puts multiple discrete devices on the PCB to form the light source for LED application, which suffers from the problems of pin light Wholesale Jerseys China , glare, and ghosting. The COB packaging, as integrated package, is a surface light source that has advantage of having a large and adjustable viewing angle, reducing the loss of light refraction.
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