2. The national invention patent application for sample collection, determination and sample collection device of nylon spinning oil fume waste gas.
(AcceptanceNo.: 200510017391.9) (First time)
3. In 2006, the oil smoke and waste gas sample collection device was patented as a utility model.
ZL200520030 107.7 (seconds)
4. In 2002, the infiltration irrigation system obtained ZL utility model patent: 02228076.6 (item 3).
5. In 2003, a kind of packing box was granted ZL utility model patent: 02279264.3 (item 3).