www.ppfengguan.com.cn
PPS管-阻燃风管-通风塑料管道-山东蓝海环保科技有限公司
山东蓝海环保科技有限公司生产各种PP管,PPS管,PP方管,PP管道,PP风管,PPS风管,PP通风风管,PP阻燃管材,PP板,PP阻燃板材的厂家,我厂通风工程设计施工为一体,电话:0531-68962816.
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