AMPP 倡导日
烟管内壁喷砂除锈
AMPP CIP 1 认证之
AMPP CIP1CIP2 和 C
随时看帖、分享到朋友圈
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chgzh0101:之前镀锌表面有锌渣,供应商用动力砂纸盘进行了打磨,打磨后表面有严重色差。(2013-05-20 16:43)
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