153 strengthen the circle diameter of 464* with 384*21

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Inside diameter of outer diameter of 464 384 highly 21 weight 8.79 < br / > img style = "width:400px; height:300px;" ALT = "Zhangqiu letter a jade ring forgings factory" SRC = "http://yxdj.qipeiren.com/UploadFile/UserProPic/2012/7/6/ 20127622591274574.jpg" / > Zhangqiu City letter a jade ring forgings factory is engaged in the ring forgings production for more than ten years, specializing in the production of bridge shell stiffening ring, flywheel ring gear blank, gear blanks, < / O: P gear ring blank forging ring forgings, sophisticated technology and reliable quality.