On July 1, 2008, the National III emission standards were formally implemented nationwide. Since then, national standard II cars have not been sold nationwide. As the domestic passenger car products have already reached the national III standard and the non-compliance N-type light diesel …

In July, a batch of chemical plants in the United States received letters from the US Department of Homeland Security (DHS) one after another and were informed that the chemical facilities they used had entered the "high risk" list of terrorist attacks. Among them, more than 200 chemi…

In 2006, the price of caustic soda was first suppressed and then raised. In the first quarter, due to the rapid expansion of caustic soda production capacity in recent years, prices have generally been slow to decline. However, starting in April 2006, with the increase in international demand …

Body a wide range of materials, suitable for a variety of conditions. Valve commonly used materials are the following nine: 1. Gray cast iron, suitable for working temperature between -15 ~ +200 ℃, nominal pressure PN ≤1.6MPa low-pressure valve. 2. Black malleable iron, suitable for…

The new technology developed by Haohua Aerospace Co., Ltd., located in Jiaozuo, Henan Province, has shortened the polymerization time of SG3 type PVC resin and has recently passed the results appraisal organized by the Science and Technology Department of Henan Province.

The productio…

There are many ways to dry, such as traditional hot air drying; steam drying. Microwave drying equipment as a new type of research and development design of a variety of disciplines as one of the high-tech products, because of its various advantages and characteristics of adapting to natio…

Machine maintenance and troubleshooting are prerequisites for proper use.

Screw air compressor is divided into single screw air compressor and twin screw air compressor centrifugal air compressor piston air compressor sliding vane air compressor swirl air compressor rotary vane ai…

Product name Specification Material Steel/Origin price (yuan/ton) Than last week than last week General line Φ6.5/8mm Q235 Qinggang 5090 0 150 690 High line Φ10mm Q235 Handan steel 5090 0 150 610 Rebar Φ12mm HRB335 Blue Steel 5030 0 180 610 Rebar Φ14mm HRB335 Qinggang 4980 0 180 6…

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The product name specification material steel factory/origin price (yuan/ton) is Φ6.5mm higher than that of last month than last week. General line Φ6.5mm Q235 8 steel 5030 30 130 230 High line Φ6.5-10mm Q235 Eight steel 5080 30 80 260 High line Φ6 .5-10mm Q235 Wine Steel 5080 30 …