The product name specification material steel factory/origin price (yuan/ton) is higher than yesterday's last week than the previous month General line Φ6.5/8mm Q235 Qinggang 5030 0 0 -170 High line Φ10mm Q235 Handan Steel 5120 0 -150 -330 Rebar Φ12mm HRB335 Qinggang 5080 0 -120 -170
The flood caused by tropical storms in Kammuri, Vietnam, affected the urea border trade between Vietnam and China. Two weeks ago, China exported 50-10,000 tons of urea through the border to Vietnam's Lao Cai province, of which 1,000-2,000 tons of urea FOB was less than $600s/t fob. The urea tr
GB 7173-87 This standard applies to the determination of soil total nitrogen content. 1 Measurement principle When the sample is digested with concentrated sulfuric acid under the participation of an accelerator, various nitrogen-containing organic compounds undergo a complex pyrolysi
In the 1930s, the United States invented the butterfly valve, which was introduced to Japan in the 1950s and was not commonly used in Japan until the 1960s. However, promotion in our country was after the 1970s. At present, butterfly valves of DN300 mm or above have gradually replaced gate valves
The product name specification material steel factory/origin price (yuan/ton) is higher than yesterday last week than the previous month General line Φ6.5mm Q235 Tong Steel 5800 -20 -50 -100 Common line Φ8mm Q235 Tong Steel 5800 -20 -50 -100 High Line Φ6.5-10mm Q235 Xilin 5850 -50 -50 -80
The wafer check valve is a universal one-way fluid valve. Its light weight, small size, easy to install in the flange between the valve by the two semi-circular spring and the plate surface, with the pin fixed to the valve body on the spring deformation of the valve plate closed, fluid pressur
The product name specification material steel factory/origin price (yuan/ton) is Φ6.5mm higher than that of last month than last month. General line Φ6.5mm Q235 Tangsteel 4770 0 -180 -710 High line Φ6.5mm Q235 Guanggang 5220 0 -180 -600 High Line Φ8mm Q335 Guangzhou Steel 5220 0 -180 -
Umbrella rotary top, also known as the top of the big head or the top of the pipe, is mainly used to support the sleeve parts, can withstand higher cutting load, improve the workpiece support stiffness and reduce the workpiece deformation. The “National Standard for
The development of waterborne wood coatings in China has undergone a difficult process in the past 10 years. At present, the road to industrialization is still far away. Not long ago, the China Coatings Industry Association held the first waterborne wood coatings development seminar in Guangzhou to