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HENAN DAZHI PAPERMAKING EQUIPMENT AND ENGINEERING CO., LTD. 
Pantent List Of Dazhi
NO. Patented Item Patent No. Date Of Authorization Acquisition method
1 Dedicated dilution valve for headbox CN 201705983 U 2010.08 Independent Research
2 Headbox for medium/low speed paper machine CN 201746728 U 2010.08 Independent Research
3 Press section for Yankee machine CN 201746730 U 2010.08 Independent Research
4 Fourdrinier section without suction couch roll CN 201746731 U 2010.08 Independent Research
5 Rolling mill for curved shaft/roll CN 202037173 U 2011.04 Independent Research
6 Differential micro-adjusting mechanism for headbox slice lip CN 202039240 U 2011.04 Independent Research
7 Auto-expension head for unwinding of slitter CN 202389989 U 2011.12 Independent Research
8 New slice lip for headbox CN 202390711 U 2011.12 Independent Research
9 Deckle edge shower device CN 202577033 U 2011.12 Independent Research
10 Welded carrier beam for shoe press roll CN 202913296 U 2010.10. Independent Research
11 New headbox lamella CN 202913294 U 2010.10. Independent Research
12 Auto. connection & clamping device for Mating roll and shoe press roll CN 202913297 U 2010.10. Independent Research
13 A kind of stock diversion plate CN 202913295 U 2010.10. Independent Research
14 A kind of air dryer nozzle ZL 2013 2 0701907.1 2013.11 Independent Research
15 A new kind of universal shaft for metering rod drive ZL 2013 2 0702050.5 2013.11 Independent Research
16 A new kind of circulation HP cleaner ZL 2013 2 0722483.7 2013.11 Independent Research
17 Efficient disc tail cutter ZL 2013 2 0722485.6 2013.11 Independent Research
18 A kind of simple and efficient slitter knife engaging device ZL 2014 2 0537292.8 2014.09 Independent Research
19 Curved roll for high speed wide paper machine ZL 2014 2 0537352.6 2014.09 Independent Research
20 A kind of cost-efficient pressure screen ZL 2014 2 0539715.X 2014.09 Independent Research
21 Cost-efficient undwinding tension control device for slitter  ZL 2014 2 0539780.2 2014.09 Independent Research
22 A new kind of curved roll support ZL 2014 2 0544160.8 2014.09 Independent Research
23 A kind of twin screw refiner with adjustable clearance ZL 2014 2 0647665.7 2014.11 Independent Research
24 A new kind of wood chip cleaner ZL 2015 2 0663113.X 2015.08 Independent Research
25 A kind of helical casing for twin screw tearing machine ZL 2015 2 0824122.2 2015.10 Independent Research
26 A kind of screw conveyor group with pre-impregnation and pre-steam process for wood chip ZL 2015 2 0839448.2 2015.10 Independent Research
27 A kind of approaching structure for film size press ZL 2016 2 0863789.8 2016.08 Independent Research
28 A kind of combination web stablizer ZL 2016 2 0892876.6 2016.08 Independent Research

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