The special pulling rivet of rail wagon is a connecting fastener which has higher requirements on the performance parameters.

铁路货车专用拉铆钉是铁路货车连接紧固件，性能参数要求较高。

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So serious are these hurdles that it takes six days for a rail-freight wagon to get to Milan from London, twice as long as a heavy lorry.

ECONOMIST: A better way to fly