The four quality elements of the tool holder

CNC machining centers have continued to improve and develop over the past 30 years. The design of these machines is now fully flexible and can be applied to a variety of processing applications from short-term tool manufacturing to long-term product production with minimal structural

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Comprehensive Service Building Construction Project

Project Name: Construction Project of Comprehensive Service Building in Qingzhou Village, Fuzhou (April 2012 - April 2013, RMB 32 million) Area: Fujian Progress: Engineering Design and Construction Period: April 2012 - April 2013 Major equipment: cranes, fire-fighting facilities, security faciliti

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May 12 Lanzhou Steel Market Price Quotes

Product Name Specification Material Steel/Origin Price (Yuan/Ton) Than Yesterday Last Week, General Line Φ6.5mm Q235 Bay Steel 5870 0 70 920 High Line Φ6.5-10mm Q235 Baysteel 6000 0 100 950 High Line Φ6 .5-10mm Q235 JIS 6000 0 100 950 Rebar Φ12-14mm HRB335 Ba Steel 6080 0 80 720 Rebar

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Insulation valve introduction

The heat preservation valve adopts good insulation measures for a large number of valves in industrial production, not only can obtain good energy saving effect, but also can improve the safety and reliability of the valve and prolong the service life of the valve. Insulation valve produc

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Brief description of the classification of steel gate valve

1. According to the gate structure can be divided into 1) parallel gate valve: sealing surface and vertical centerline parallel, that is, two sealing surface parallel to each other gate valve. Parallel gate valve is usually double gate structure. In parallel gate valves, the structure with thrust

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China Lubricants and Base Oil Demand Analysis

According to data provided by CNPC on November 25, 2010, although global lubricants demand declined in 2009, China’s consumption still rose to more than 6 million tons, and is expected to increase to 6.5 million tons in 2010. Bigger China's desire to import base oil . Imported ba

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