不卡无码中文字幕的性|亚洲五月婷婷综合社区|无码人一区二区三区99|伊人免费三级一区二区|欧美不卡乱码在线观看黄片|亚洲欧美囯产国产综合区



Culture

Culture



ABOUT US

SHANDONG GUANGTONGBAO

The predecessor of Shandong Guangtongbao Pharmaceuticals Co., Ltd. is Shandong Guangtong Chlorophyll Co., Ltd. which is one of the first enterprises engaged in the development and production of chlorophyll products. Guangtongbao now has several series (chlorophyll series product, vitamin k1 series products, vitamin D3 microcapsule), Main products in the domestic market enjoyed a high reputation. US FDA, Chinese GMP certificati


0

Company founded in 2003

0

Registered capital of 28 million

0

Recognized as a high-tech enterprise in 2012

0

12 invention patents

History

In 1918, Shandong Province Industriy Department allocated funds of 40810.00 prepared to build Qingzhou silkworm and silk farm on the base of Qingzhou state office.
In 1920, Qingzhou silkworm and silk farm introduced 69 silkworm from domestic and Japan for experiment.
In 1925, Qingzhou silkworm and silk Farm was reorganised to silkworm production farm.

History

In 1930, Silkworm production farm was reorganized to provincial sericulture experiment farm.The maximum production capacity is 18400 box of hybrid eggs.
In 1937, Japan launched an all-out war of aggression against China, Improvement of Shandong modern Mulberry and silkworm in shandong province dies on the vine unfortunately.




?