September 28 China Plastics Information LLDPE Quotes

I. Quotes:

Today, LLDPE market prices have strengthened and transaction prices have also increased significantly. Today's petrochemical companies have stepped up efforts to strengthen the market, forming a strong support for the market, the curr

About Qualifications for Coal Management Qualification in 2010

Brief content: among them: 1 in Hexi District, 1 in Hedong District, 1 in Nankai District, 1 in Hongqiao District, 4 in Dongli District, 4 in Xiqing District, 4 in Jinnan District, and 2 in Beichen District; Wuqing There are 5 districts, 5 in Baodi District

Main Problems Existing in the Motor Drive Motor and Its Controller in China

(1) R & D capability of motor raw materials and controller core components is weak, depending on imports, such as silicon steel sheet, high-speed motor bearings, position / speed sensor, IGBT module and so on. High cost of imported products, affecting the industrialization of motor systems.

Access Control System Installation Framework

Access control system classification

The access control system can be divided into the following three categories according to the access identification method:

Solar greenhouse scientific fertilization technology

Linyi Fertilizer Network Copyright
1 Fertilization principle According to the law of nutrient absorption and utilization of crop growth and development, organic fertilizer is applied again, nitrogen, phosphorus, potassium and other fer

Three screw pump structure and working principle

The three-screw pump is mainly composed of a bushing (pump cylinder) fixed in the pump body, an active screw rod inserted in the pump cylinder and two driven screws which are engaged with the screw rod pump. Three intermeshing screws, in the pump cylinder by each lead to form a sealed chamber,

How to choose an access controller

The access controller is the core part of the access control system and is the soul of the access control system. The quality and performance of the access controller directly affect the stability of the access control system. The stability of the system will

Nanchang builds 100 billion auto and parts industry

On the morning of September 5, Yu Xinrong, member of the Standing Committee of the Jiangxi Provincial Party Committee and Secretary of the Municipal Party Committee, went deep into the investigation of Jiangling. He inspected the progress of the 300,000 vehicle project of Jiangling Xiaolan B