免费毛片一区二区三区久久久,国产成人一区在线观看,综合久久精品,国产精品久久久久久久久亚洲美女,亚洲区自拍,日韩区国产,日韩av看

Our products are not only welcomed in domestic, but also have been exported to German, Japan and other countries. Due to strict quality management system, our products are highly praised by wide customers. In addition, we established professional scientific research team to carry out research and production. Our annual sales revenue has reached about RMB 80 million Yuan, with annual profit and tax of RMB 9 million Yuan.