Bolt standard - GB standard

Specification Standard - GB Standard

Square head bolts C grade GB 8-88
Countersunk head neck bolt GB 10-88
Countersunk head with bolts GB 11-88
Semicircular square head bolts GB 12-88
Round head with bolts GB 13-88
Large rou.......

Cummings Cao Side: China's market is the healthiest

It is not easy to make a speech with new energy technologies as the main content firmly grasp the eyes of all the audience, especially considering that the speaker is an out-and-out American, which is even more challenging.

But Steve Chapman, president of Cummins China, still.......

It is not always better to start the engine hot car in winter


In winter, when the temperature is low, whether the need for a hot car after starting the engine becomes the topic of concern to the owner. In general, the EFI engine and the aging oil engine must be warmed up at the start after starting, but the time is different from the temperature. .......

Yulin version of coal oil to achieve industrialization

On March 9th, the reporter learned from Shaanxi Coal Chemical Group that the world’s largest low-temperature coal tar lightening project—a total investment of RMB 1.7 billion in Shaanxi Coal Chemicals Group Co., Ltd. Yulin Jinjie Tianyuan Chemical Co., Ltd. 500,000 tons/year of l.......

Allison Transmission becomes a must for mine fire engines

Rough and slippery road surface, rugged and dark environment, how can the fire brigade accomplish the task of reaching the site in eight minutes in the harsh geography of the Grevenbroich mine in Germany? The Germans gave their special Choices - Use the Allison Transmission.......

How to use centrifugal pump

Pump trial run should meet the following requirements:

â‘  drive the steering should be the opposite of the pump steering;

â‘¡ identify the pipeline pump and coaxial pump steering;

 '¢ fixed joints should be no loose parts, the smooth parts of the.......

Foton Motor Sales Up 34.6% YoY


Core Tip: The sales data for May was disclosed on June 11, 2010: May sales of 59,722 units in May, accumulated sales of 316,994 units in 2010, a cumulative increase of 34.6% over the same period of last year, including a cumulative increase of 113.3% in medium and heavy trucks, a cumulati.......

Lithium-ion battery repair device design

Cell phone battery repair instrument birth background:

With the needs of the development of contemporary society, almost everyone is using mobile phones, and mobile phones have become a daily necessities that we cannot do. In people's frequent us.......

Improvement of Crude Fiber Determination Method

Improvement of Crude Fiber Determination Method
Fiber refers to a complex of carbohydrates and other substances in the cell walls of edible plants. Although the fiber can not be digested and absorbed by the human body, its nutritional value is very lo.......