you can call us and place an order of the products you want. here at mature hearts we’re now opening our doors to new writers who’d like to join our community. and what lessons can we learn for our own vision of the urban future? besides supplying different sizes of grinding steel balls, we also supply other services, like developing new special steel balls according to the ore conditions for our customers. by a large group, we mean hundreds of. in their own way they must have loved one another very much. and one less quilt in my sewing room! 