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?2015年(nian)11月25日，發(fa)明專利《一種(zhong)長效鋅肥(fei)及(ji)其(qi)制備方(fang)法》獲得授(shou)權，專利號(hao)為ZL201310132744.4。?
0335-8500208
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河北省秦皇島市經(jing)濟技術開發區(qu)秦皇西大街(jie)78-1號
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