因?yàn)椋斯ど岸际菣C(jī)械化生產(chǎn)，有固定的生產(chǎn)場地和比較完善的組織管理，人員素質(zhì)相對(duì)較高，而這些是大多數(shù)天然砂生產(chǎn)企業(yè)缺少的。

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