The manifest is carried out by the customs in November last year. No matter what the shipping company, it must be issued. It is required by the general administration of customs. Now find freight forwarders or shipping agents to send the general fee of 50 RMB or 100 RMB per ticket.Export to foreign

Most people get Fluke test reports in hard copy or PDF files, often ignoring the most valuable test data, the paper version of the test report or the PDF version of the test data can basically see only the test results, pass or fail, and a very small portion of the test data (less than 1% of all the

In the import and export trade by means of letter of credit settlement accounts for the majority of international trade settlement. So what exactly is a letter of credit? To do what? How to use it? Letter OF CREDIT (L/C) is a guarantee in favor OF the seller made by the issuing bank at the instructi

With the increasing demand for product quality and safety, SDS test report has gradually become an important product quality test standard. SDS stands for"Safety Data Sheet" and is usually translated as"Safety Data Sheet". However, many people are confused about whether SDS is a certificate or a rep

Once the LABA Festival passed, the Spring Festival came one after another. It's been an extraordinary year, which makes the upcoming reunion all the more precious and exciting.Chinese New Year is the most ritualistic moment in the hearts of the Chinese people, and it is also a massive national pilgr

1 PrefaceFiber optic cable line lightning and strong electricity, is through the avoidance, channeling or leakage into the ground and other means, in order to prevent lightning/strong electricity on the fiber optic cable line itself or communication equipment and people made damage. Since the lightn

1 IntroductionBefore 1980s, preserved wood poles (hereinafter referred to as "wood poles") were mostly used in communication lines. At that time, wooden poles were often called tarred poles because the preservation of wooden poles was treated with tar at post offices or long-distance service station

1 unequal score optical adaptation scenario analysisTraditional unequal score optical ODN introduction of fiber optic lines usually use a tree network structure, each splitter box is equivalent to the "leaves", generally assigned 2 cores (a master and a standby), the structure can be adapted to a va

The quality of the home network is mainly related to the performance of the home network devices, the connection between the devices, the quality of the wifi signal in the residence, and the use of the user.1 Performance of equipmentThe performance of the equipment that has a big impact on the wifi

The impact of broadband fiber access networks on the quality of home broadband services is often related to ODN fiber link interruptions, ONU weak light, GPON access to Gigabit subscribers, OLT uplink bandwidth limitations, and OLT reloading.1 ODN fiber link interruptionFrom the viewpoint of the cau