Steel pipe inner wall anti-rust agent applicator for anti-rust engineering

The invention relates to an anti-rust agent applicator, in particular to a steel pipe inner wall anti-rust agent applicator for anti-rust engineering. The technical problem to be solved by the invention is to provide the steel pipe inner wall anti-rust agent applicator for the anti-rust engineering,...

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1. Verfasser: LYU GUANGLEI
Format: Patent
Sprache:chi ; eng
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