日产精品久久久久久久性色,无码一区二区三区在线观看,精品国产乱码久久久久久直播,国语自产偷拍精品视频偷97,免费99精品国产自在现线观看 ,亚洲综合精品香蕉久久网97|国产成人亚洲综合91精|亚洲成Aⅴ人片在线观看无码|无码国产精品一区二区免费16|亚洲成a人片在线观看国产 ,亚洲欧美天堂综合一区_青草久久久国产线免观_国产在线视频一区二区二区_欧美日韩一区中文在线,国产福利113精品一区二区三区,亚洲女人被黑人巨大进入 ,&

Beijing Qingshen Shanshui Flower and Wood Co., Ltd. was established in 1997. It is a high-tech enterprise and also a research base of the "National Key Laboratory of Efficient Production of Forest Resources" at Beijing Forestry University. The company is honored to be included in the "Beijing Annals - Landscape Greening Annals" and recorded in the history of Beijing‘s landscape development.

The company‘s base is located 2 kilometers east of Xiaodian in Yang Town, Shunyi District, Beijing, with a total area of about 1200 acres, including more than 800 acres of agricultural land and more than 300 acres of forest land. Moreover, more than 500 acres of agricultural land have been designated as high standard farmland construction areas. Since the return of forests to farmland, the company has set the development goal of "promoting both agriculture and forestry, and persevering", and has carried out the construction of "agroforestry composite management and integration" to create more value on limited land.

亚洲?V无码成人精品区日韩_亚洲精品日韩片无码中文字幕_久久精品?ⅴ无码中文字幕_国产精品无码无卡在线观看