River Moulds - we produce similiar as Keystone
Important difference is that we specially take care of the design in the block - interlocking area.
This area we will do changable cause of the needed claerance between block and block - to secure longtime use without any problems of the block interlocking.
Additionally we can add aweresome Features - like change of cores - out of one mould can be done two kinds of blocks
Like all our moulds - all parts are changeable for a long lifetime
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