... steel parts4.the weight 12tons5.we can supply all kinds of crusher parts, such as jaw plate, concave, liner, hammer, cheek ... step on internation way, and specially we have a group of engineers who experience are very plenty.7.we have got ... the certificate of ISO9001:2002, ISO14001:2004,GB/T28001:2001 Jaw Plate for All Kind of Jaw Plate