18禁美女久久久_丝袜热久久免费视频_中文字幕第一页日本_日韩色女在线观看_日韩色女在线观看_亚洲精品在线91_日韩精品9999_日本国产一区



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.




?
精品无码免费91视频| 毛片一还二区三区| 国产日批精品视频| 99r在线观看日韩mv国产网站| 玖玖激情夜色资源| 五月成人丁香av| 91超碰资源总站| 伊人久久综合加勒比| 日韩精品一区精品| 成人动漫一区二区| 在线中文字幕欧美| 农村探花操野外熟妇| 日韩综合久久伊人| 噜噜噜噜AⅤ资源| 五月激情丁香伊人| 日韩岛国在线一区| 中文字幕日日更新| 99精品免费久久久久久| 中国免费AV在线亚洲无码| 日本欧美久久一区| 另类专区偷拍| 亚洲成人动漫av| 男女拍拍无挡视频| 日本系列欧美系列| 一区二区视频观看| 久久久看视频| 国产成人精品AV| 亚洲经典视频1区| 99er热精品视频免费| 五月婷在线精品视频| 亚洲高清无码68| 成人做爰免费A片| 四虎一区二区三区四区| 久久五月激情综合| 怡春院午夜影院| 一区不卡在线观看| 奇米777狠狠的| 亚洲国产99国产欧美日韩综合| 国产成人无码电影| 日本伦理一区二区| 国产欧洲一区二区|