Acrylic, also known as PMMA or plexiglass, is derived from English acrylic (acrylic plastic), and the chemical name is polymethyl methacrylate. It is an important plastic polymer material developed earlier, with good transparency, chemical stability,…
Continental natural gas futures closed up 6.7% Thursday at a record high, with European gas prices already ten times higher than usual for this time of year. Benchmark electricity prices in Europe also hit a new record Thursday, deepening an energy c…
Cotton futures climbed to their highest level in more than a decade on the 21st due to prolonged drought conditions in parts of the central United States. Cotton reportedly hit $1.3171 a pound in the main U.S. futures contract, its highest level sinc…
Here is t he knowledge of Sendzimir bearing installation 1. Clarify the type of Sendzimir bearing The type of Sendzimir bearing indicates the basic bearing size, original clearance, cage type, seal form, lubrication requirements, etc. Therefore, befo…
Recently, as the national steel production restriction has accelerated, iron ore futures prices have continued to drop. As of the close of the domestic futures market on the afternoon of August 10, the main iron ore contract closed at 853 yuan/ton, d…