We have received HOKUSHIN Brand Rubber Apron(Top Apron 37X28X1.1mm--26000pcs and Bottom Apron 83X30X1.1mm---29000pcs) on dated 03.06.15 against L/C no- 100914010347 dated 2014-12-17.We have fitted this rubber apron on dated 31.06.15. After running about 9 Month we have observed that some string have come out from the edge of the apron