关于召开“石家庄·
AMPP熔结环氧粉末涂
认识单组分手工聚脲
格麟倍丨二轮电动车
随时看帖、分享到朋友圈
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dukun:呵呵,内行人说说,表面处理粗糙度过大! (2016-10-18 09:54)
dukun:谢谢夸奖! (2016-10-20 07:58)