... , shank plate, shank ripper and protector plate etc, involving the trademark of Caterpillar, Jcb, Esco, Komatsu, Hitachi, with over 700 varieties ... , shank plate, shank ripper and protector plate etc, involving the trademark of Caterpillar, Jcb, Esco, Komatsu, Hitachi, with over 700 varieties ...