Wannian Lock is located 4 kilometers north of Jiantou Ji Town, Taierzhuang District, Zaozhuang City, Shandong Province. The construction of the lock began in April 1996 and was completed and put into operation in December 1999. The gate is the national secondary standard. The effective size (length × width × threshold water depth) of Wannian lock is 230 meters ×23 meters ×5 meters. It can pass through 2,000-ton barges with an annual designed passing capacity of 21 million tons. Wannian lock is the tenth step north of the Yangtze River in the Beijing-Hangzhou Canal and the second lock in the Shandong section.

In June 2021, our company won the bid and completed the updating work of four sets of QRWY-230KN/120KN-4.66m miter hydraulic hoist and four sets of 200KN/110KN-4.2m valve hydraulic hoist for Wannian lock lock.