The houses in Xuzhou Wanjincheng were of good quality in several periods.

Does the subject want to ask "which period of house quality in Xuzhou Wanjincheng was good"? The first issue is good.

1, material. The first phase of the house in Xuzhou Wanjincheng used high-quality steel bars and floors, and the other phases used ordinary quality steel bars and floors.

2. Greening. The greening rate of Xuzhou Wanjincheng Phase I houses was 35.2%, which exceeded the standard greening rate by 5.2%.