无污染高效营养育苗器 (纸质 )系列产品集当代科技成果之精华 ,经上百次反复试验研究并研制成功 ,已获国家发明专利 (专利号 :ZL961 1 72 1 8.5) ,获第七届中国发明专利博览会银奖。▲专利系列产品之一 :无污染营养育苗纸杯。有 40× 40 mm,60× 60 mm,80× 80 mm(上口径×高 ) Pollution-free and efficient nutrition nursery (paper) series of products set the essence of contemporary scientific and technological achievements, after hundreds of repeated trial research and development of successful, has won the national invention patent (Patent No .: ZL961 1 72 1 8.5), won the seventh China Invention Patent Expo Silver Award. ▲ Patented product line: pollution-free nutrition seedling paper cups. There 40 × 40 mm, 60 × 60 mm, 80 × 80 mm (diameter × high)