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How much does three or five minutes of copper weigh?
One to three kilograms.

A desk clock is a clock that can't be hung. It is only used to put on a table or a table. It also refers to the bronze gold-plated louver clock used by the white ape for his birthday. It was a birthday gift from Europeans when Qianlong was 80 years old. "35" brand clocks and watches were born in the 1930s and 1940s.

At that time, most domestic clocks and watches could only last for 7 days. Ruan Shunfa, an engineer, and factory technicians have made birdcage gears and high-finish shaft cores through repeated experiments and continuous improvement, thus prolonging the travel time and service life. In this way, the clock can run continuously for 15 days. In order to highlight this performance feature, we finally decided to adopt three "5s" as product trademarks, named "35" brand 15 day clock. The "35" brand clock was very popular as soon as it came out, and it quickly became a leader in China's national industrial products. The factory also uses the overseas trade channels of China domestic joint venture company to sell its products to all parts of Southeast Asia, and overseas Chinese are flocking to it, and export accounts for 80% of the total output.