857-10-020-10-002000规格参数
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857-10-020-10-051000 857-10-020-30-002000 857-10-020-30-051000 8-571002-1 857-10-022-10-002000 857-10-022-10-051000 857-10-022-30-002000 857-10-022-30-051000 857-10-024-10-002000 857-10-024-10-051000