| 摘要 |
The invention relates to a nitro-combined varnish composition for protecting wood and metal surfaces, which comprises 7 ... 18 % of nitrocellulose, 12 ...37 % of alkyd resin; 0.5 ... 4 % of plastifier; 0.4 ... 5 % of ketone resin; 0.3 ... 5 % of esterified collophony and organic solvents for the remainder up to 100 % by weight, organic solvents, the percentage being expressed by weight.
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