Assertion: radial tire's reinforcement layer | /r/MadeOf | two steel belt layers
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Source sentences:
text: In general, conventional pneumatic radial tires for passenger vehicles have a carcass layer in which a synthetic fiber such as nylon fiber and polyester fiber is used as material for the cords therein, and a belt reinforcement layer consisting of two steel belt layers in which the cords in one layer cross those in the other.