Ding Dong Shopping is a self-operated fresh-keeping platform and a life service APP that provides delivery service. The main products provided are vegetables, bean products, fruits, meat and poultry eggs, aquatic products and seafood, rice flour, grain and oil, snack food and so on. Operated and developed by Shanghai Yibaimi Network Technology Co., Ltd. ..
In June, 20021,Ding Dong Shopping announced that it had completed the D+ round financing of US$ 330 million, which was led by Softbank Vision Fund. On June 9th, Ding Dong bought vegetables and submitted the IPO application documents to the US Securities and Exchange Commission.
Precautions:
Although there are many kinds of vehicles, their structures are similar. This should be said to be the credit of standardization and the need of large-scale production line. With the development of society, the progress of science and technology and the change of demand, the appearance of railway vehicles has also begun to change, especially the passenger cars are no longer the same old faces. However, their basic structure has not changed obviously, but the specific parts have more scientific and advanced structural design.
Generally speaking, the basic structure of a vehicle consists of five parts: body, underframe, running gear, coupler buffer device and braking device.
The car body is the part of the vehicle carrying goods or passengers, and it is also the basis for installing and connecting other parts of the vehicle. The bodies of early vehicles were mostly wooden structures, supplemented by steel plates and bow bars. Modern automobile body is mainly steel structure or light metal structure.