Heat treatment is the key technology to control fastener performance, ensure long life and safety and reliability, and is the core element of the competitiveness of advanced materials and high-end mechanical equipment. International fastener manufacturers that produce brand-name pr
Read more1. Intuitive method: For powder pesticides, first look at the appearance of the medicament. If it is agglomerated by moisture, the taste of the medicine is not strong or has other odors, and it can be pinched into a group, indicating that it has basically failed; for the emulsion pesticide, the
Read moreAbstract Stock code: 300179 Stock abbreviation: Sifangda Announcement No.: 2013-042 Announcement of the Resolution of the 15th Meeting of the Second Board of Directors of Henan Sifangda Superhard Materials Co., Ltd. Stock code: 300179 Stock abbreviation: Sifangda Announcement No.: 2013-042
Read moreRecently, the “Safe Production Elemental Management System†of the Tingxia Reservoir was awarded an invention patent by the State Intellectual Property Office. This is another honor since the technology was granted a utility model patent last November. It i
Read moreIn the process of growth and development of crops, in addition to a large number of elements such as NPK, a certain amount of trace element fertilizer is needed. In autumn-sown crops, zinc fertilizer is applied to wheat, boron fertilizer is applied to rapeseed, molybdenum fertilizer is applied
Read moreNon-polluted vegetables mainly refer to vegetables that have not been contaminated by harmful substances. In other words, commercial vegetables do not contain certain toxic substances that are not allowed to be contained, and some unavoidable harmful substances are controlled
Read moreAt present, the market is prosperous, some companies only care about sales, regardless of quality, only to promote, do not do R & D; In addition, designers, home improvement companies and tile vendors to reach an agreement to receive rebates, but also pushed up the tile prices. Some n
Read moreRenovation is the primary problem after the purchase, and there is no specific standard in the decoration. Many people in real life often spend a lot of money, but the house that is decorated is not good for feng shui, it is not unfavorable for the cause of wealth, or it is not good for feelin
Read moreOf course, in addition to the application in petroleum, there are many other uses of polyacrylamide, such as for industrial wastewater, sewage treatment, textile sizing, including for the paper industry. In oil exploitation, polyacrylamide products can be said to be indispensable. Polyacrylamide i
Read moreAt present, the market of the ceramic sanitary ware industry is bleak, excess production capacity, and saturation of the industry have become the consensus of everyone. The development of upstream supply companies is closely related to the ceramic sanitary ware industry. It not only reflec
Read moreFew people know how the principle of the surge protector works. Everyone only knows the role of the surge protector. It is used to protect the electronics. Electrical equipment to avoid damage from overvoltage or surge energy, then what is "surge energy" and why we need to protect us M
Read moreThe Australian National University released a message on the 1st that scientists of the university have invented a kind of insulating material that can store more electric energy and consume less, and can be used to manufacture “super capacitorsâ€
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