Iron is zinc iron, which is the cheapest kind of metal. In Hong Kong, about 10 years ago, Master Yu got acquainted with cultural conservation work by chance. In the past ten years, he began to research some craft furniture products such as: iron mailboxes, ornaments, stools, gift boxes, etc. Over the years, we have co-organized different workshops to promote white iron craftsmanship. The white iron stools, earrings, handles, and storage boxes are all made by the master.