Why doesn't Rizhao develop stone mortar?

Special geographical location and complex interest relationship.

The planning and construction of stone mortar involves many units, even if it is built, it should take into account the interests or regulations of all parties. For example, the railway station needs to negotiate with Jinan Railway Bureau, the inbound railway is related to the production and interests of the port, and the procedures of the Eye of the Yellow Sea are cumbersome, all of which require the support of time and relevant policies.