Patent Certificate


Resistance adjustable external yarn drawing device ZL 2006 2 0110429.7

Resistance adjustable external yarn drawing device ZL 2006 2 0110429.7

Axial fabric device ZL 2006 20110430X

Axial fabric device ZL 2006 20110430X

Full glass steel bolt ZL 2004 2 0105533.8

Full glass steel bolt ZL 2004 2 0105533.8

Metal pipe hoop connection mechanism ZL 2006 20110348.7

Metal pipe hoop connection mechanism ZL 2006 20110348.7

Metal strip winding welding machine ZL 2006 2 0110431.4

Metal strip winding welding machine ZL 2006 2 0110431.4

hoop fiber winding machine ZL 2006 2 0110442.2

hoop fiber winding machine ZL 2006 2 0110442.2

Pipe head cutting and forming device ZL 2006 2 0110447.5

Pipe head cutting and forming device ZL 2006 2 0110447.5

Pipe connector ZL 2006 2 0110215.X

Pipe connector ZL 2006 2 0110215.X

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