Sansei. 

Sansei Co.,Ltd. designs, manufactures, installs, maintains, and sells washing gondola for cleaning windows in middle and high-rise buildings in Japan. The company also provides stage equipment, amusement machines, scaffold moving equipment, hanging curtain equipment, electric gates, other various transport equipment, and lifting equipment. In addition, it is involved in the construction, repair, and rental of ships. Further, the company engages in the production, sale, and repair of reefs; design and consultation of transportation and transportation machine; handling of aluminum building materials; metal construction; consulting on building maintenance and renewal; and earthwork businesses. Sansei Co.,Ltd. was founded in 1956 and is headquartered in Osaka, Japan.