A few days ago, the Hangzhou Enterprise Confederation and the Hangzhou Entrepreneurs Association jointly unveiled the list of the top 100 companies in Hangzhou in 2009. China National Heavy Duty Truck Group Hangzhou Engine Co., Ltd. is once again on the list.
In 2009, the ranking of top 100 companies in Hangzhou ranked the company's sales revenue (or operating income) in 2008 as the main economic indicators, ranking them from high to low, and referring to the net profits, total assets, owners’ equity, and comprehensive energy consumption of each company. The total amount of tax, R&D expenses, and number of employees are composed of the top 90 industrial companies and the top 10 companies in the ranking of commercial enterprises. These enterprises are the backbone of the local economic construction in Hangzhou, and they are also outstanding enterprises that have made outstanding contributions to the growth of Hangzhou's industrial security and against the global financial crisis.
The tandem bicycle or twin is a form of bicycle (occasionally, a tricycle) designed to be ridden by more than one person. The termtandem refers to the seating arrangement (fore to aft, not side by side), not the number of riders. A bike with two riders side by side is called a sociable.
Patents related to tandem bicycles date from the late 1890s.In approximately 1898, Mikael Pedersen developed a two-rider tandem version of his Pedersen bicycle that weighed 24 pounds, and a four-rider, or "quad", that weighed 64 pounds. They were also used in the Second Anglo-Boer War. Tandem popularity began to decline after WWII until a revival started in the late sixties. In the UK The Tandem Club was founded in 1971, new tandems came on to the market from the French companies Lejeune and Gitane, and in the USA Bill McReady founded Santana Cycles in 1976. Modern technology has improved component and frame designs, and many tandems are as well-built as modern high-end road and off-road bikes.
Tandems can have more than 2 riders - tandem refers to the arrangement of the riders one behind the other rather than the number of riders. Bicycles for three, four, or five riders are referred to as "triples" or "triplets", "quads" or "quadruplets", and "quints" or "quintuplets" respectively. One such familiar to UK TV viewers was the "trandem" ridden by The Goodies. Originally a 2-man tandem with an extra "dummy" seat attached, a full 3-man version was built for them by Raleigh.
Some designs such as the DaVinci can allow independent pedaling through the use of multiple freewheels. [4] In another design, the rear rider steers and propels the rear wheel with pedals, and the front rider propels the front wheel with both hands and feet.
Tandem Bike, Tandem Road Bike, Folding Tandem Bike
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