Roll with pastry unwind on conveyor in bakery factory. flat clean iron surface of assembly line, moving slow, there is roller with dough on it. On machine two fixtures situated on both sides for immobilize castor. Movements of transporter untwist duff and it cover metal with thin smooth layer. Woman hands check it, somewhere stretch, pass through special equipment all over. After spiked pulley with yellow handle semifinish become uneven, as for cooking cracker.