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Multi element chelator Hefei invention patent
Invention patent of urea sulfate
Potassium sulfate invention patent
Invention patent of self sampling wrapping kiln
Invention patent of automatic dust removal system
Invention patent of drying kiln
Invention patent of manual folding device
Invention patent of forced granulator
Invention patent of crusher
Invention patent of urea sulfate reactor
Invention patent of vertical crusher
Invention patent of cooling kiln
Invention patent of wolf tooth crusher
Invention patent for automatic cleaning of roller screen
Patent for invention of compound fertilizer spray oil prevention system
Cover practical invention patent
Invention patent of flushing fertilization screening device
Invention patent of fertilizer mixer
Invention patent of wrapping kiln
Comparison of fertilizer efficiency of Bao Dejun, a demonstration user in Shanhe village, huangtukan Town, Donggang, Dandong City, Liaoning Province
Comparison of fertilizer efficiency of demonstration user Xia Xianglei Jin Da Shengyuan pincer Hefei in Liujing village, Peiqiao Town, Yongcheng City, Henan Province
Comparison of fertilizer efficiency of sun Hongling, a demonstration user in Liuyuan village, Wolong Township, Yongcheng City, Henan Province
Comparison of fertilizer efficiency of integrated fertilizer in tall forest, Tianjin and dashengyuan of demonstration Sihu, Sanyi jingtun, Shuangshan village, bahao Town, Yushu City, Jilin Province
Fertilizer efficiency demonstration field of peanut special fertilizer in Suizhong County, Liaoning Province
Demonstration user Zhang Jian, Liuhegou village, Liuhegou Town, Xinmin City, Liaoning Province, fertilizer efficiency display of tomato demonstration field
Fertilizer efficiency display of sun Guilan tomato demonstration field, demonstration user of group 8, Wanghu village, Daniu Town, Tai'an County, Liaoning Province
Fertilizer efficiency display of peanut demonstration field by Zhang Hongyu, xinhuanghutun demonstration user, shuangqingshan village, Momoge Town, Zhenlai County, Jilin Province
Comparison of fertilizer efficiency between Liu Fengjin, a demonstrator in rocket Town, Wangkui County, Heilongjiang Province and Da Shengyuan pincer in Hefei corn demonstration field