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CHANGSHENG GEOMATERIAL TECHNOLOGY LTD.CO.
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| YEAR | CONTENT | GENRATION | |
| Oct 1990 | Discovered and setup the new motion principle of shuttle of plastic circular loom | ||
| Mar 1991 | The new principle for shuttle motion leaded to successful trial weaving on S-YZJ-4A Four Shuttles Circular Loom,this is the 2nd generation circular loom | Second Generation | |
| June 1993 | S-YZJ-6/1600 Six Shuttles Circular Loom which based on the new motion principle of shuttle successfully worked out, this is 3rd generation circular loom | Third Generation | |
| Aug 1993 | Applied for patent of The Shuttle of Plastic Circular Loom | ||
| July 1994 | Received patent certificate of The Shuttle of Plastic Circular Loom from China Patent Bureau | ||
| Oct 1996 | Invented perfect structure to execute shuttle motion, applied for patent of Swallow-tail guide rail pair for plastic circular loom | ||
| Aug 1997 | Successfully manufactured heavy-duty Eight Shuttles Plastic Circular Loom with utilization of Swallow-tail guide rail pair for plastic circular loom technology | Fourth Generation | |
| Jan 1998 | Received patent certificate of Swallow-tail guide rail pair for plastic circular loomfrom China Patent Bureau, check google link CN 2272898 Y for details |
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| Aug 2000 | Successfully developed Ten Shuttles Plastic Circular Loom SPCL-10/6000 integrated with several advanced technology, this is just the 5th generation circular loom | Fifth Generation | |
| Oct 2002 | Announced WHITE PAPER for CHANGSHENG Plastic Circular Loom (SPCL) series | ||
| Feb 2019 | The first 20-shuttle circular loom shipped |
