多级拉丝油通用铜拉伸油合金拉拔油高性能无烟申线油

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Shanghai gathering industries ltd

Address:Shanghai watin chemical plant limited, cardinal city, shanghai
Tel:13585634696

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13585634696

多级拉丝油 通用铜拉伸油合金拉拔油高性能无烟申线油