1, Yu He Gu Lin is very good. Yu He Gu Lin kiln mouth products are similar to Yaozhou kiln and Longquan kiln, one of the eight largest folk kilns in history. Therefore, in the Song Dynasty, all kilns with similar products in central Henan were classified as Linru kiln system, which was called Linru kiln.
2. Mainly concentrated in the counties under the jurisdiction of Ruzhou, including Linru, Jiaxian, Lushan, Baofeng and neighboring Yiyang, Xin 'an, Chenliu, Yuxian and Neixiang. Its scale is not as big as that of the North and South Kilns in the Northern Song Dynasty.