China Power Transmission Spur Gears factory Our History Qingdao BOT Machinery Co., Ltd. was established in 1999. We have been committed to the manufacture of transmission system accessories for 20 years. Our Factory Our factory has 56 employees, and the factory covers an area of more than 8,000 square meters锛宎nd the annual output value is more than 4 million US dollars . Our Product Our company...