According to the data, in the 65 major petroleum and chemical products that were tracked in April, there were 57 types of production, which accounted for 87.7% of the increase compared with the same period of last year, and 56.9% of which increased by more than 10%. Some products have experienced rapid growth. For example, domestic energy demand continues to expand, and the production of natural gas, crude oil, and processed products has driven a rapid increase. With the arrival of spring farming, the output of chemical fertilizers, pesticides, and other agrochemicals has greatly increased, and basic inorganic substances such as “triacids and alkalis†have become more common. Driven by the demand for chemical raw materials, the operating rate of production equipment has been greatly increased. Coupled with the gradual commencement of production of some new expansion capacity, the output growth has been outstanding.
In April, the price of oil, coal, electricity and other energy sources continued to rise, coupled with tight transportation and rising freight rates, the prices of petroleum and chemical products in the country were always fluctuating at high levels. Of the 146 kinds of petroleum and chemical products that were tracked, prices rose by 84, or 57.5%, compared to March; compared with the same period of last year, the number rose to 121, accounting for 82.9%. In April, the international oil price broke through 57 US dollars/barrel for a time, and then quickly fell due to the increase in US oil inventories, but basically remained at a relatively high price of 50 US dollars/barrel or more; Incremental; Inorganic chemical products fluctuate greatly, the number of 26 products tracked by the focus rose and fell compared with that in March, but the price of 73.1% of products increased compared with the same period of last year; organic products were strongly demanded by the downstream market. Affected by high international oil prices, the prices of most products have risen; the price of synthetic resin products has risen in addition to PVC; the price of natural rubber has risen slightly, and the price of synthetic rubber has oscillated at a high level.
The metal surfaces are ground and fixed parallel. Special formulated explosive powder is placed on the cladder surface. The detonation front travels uniformly across the cladder surface from the initiator and the cladding material collides with the backer at a specific velocity and impact angle. Oxides and impurities are expelled, leaving the plate surfaces metallurgical pure and creating a metallurgical weld between the two metals. After this process is performed, the newly formed clad is flattened, annealed if required as well as tested and inspected.
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