The day of May 7 may be called that of happy events in pairs for DSIC Offshore, where A5000 deep-water semi-submersible drilling platform and BT4000-1 semi-submersible drilling/repair platform built by her have undocked smoothly on the same day, marking that DSIC Offshore has accomplished the production milestone of two types of products in dock - “Building and Undocking Simultaneously” at the first time, which has laid a good foundation for next-phase delivery of the platforms.