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Unlike conventional drill bits that remove the entire material to create a hole, annular cutters feature a cylindrical design with sharp teeth that carve out a ring-shaped groove, leaving a solid core. This method reduces material waste, requires less power, and enables faster drilling. When crafted
On the afternoon of April 13, Brazilian President Lula visited Huawei's Shanghai Research Institute. Huawei Shanghai Research Institute was established in 1996 and moved into Jinqiao Base in 2010. The Institute focuses on wireless communication research and product development, and is mainly engaged
1. The Ministry of Commerce of China conducts a trade barrier investigation on Taiwan's trade restrictions on the mainland.2. The Philippines formally submits the RCEP approval letter, and RCEP will come into force for the Philippines on June 2.3. In 2022, wind power generation will hit a new high,