aour product NO.971 ALKYD PHOSPHATE ZINC ANTI-RUST PRIMER does not contain chromium zinc,strontium chromate,and the lead content is lower than 300ppm 我们的产品没有醇酸树脂磷酸盐锌防锈底漆不包含铬锌,锶铬酸盐,并且铅含量低于300ppm[translate]...
A zinc-plated article being free from the occurrence of whisker having a multi-layered film which is excellent in rust resistance, self-recovering property and adhesion of layers; a composition for forming the multi-layered film; and a m... A Sawatari,R Muroi,T Katano,... - WO 被引量...
Zinc-Iron platingprovides improved corrosion protection versus zinc alone. Likewise, it has even deposit distribution and superior lubricity, ductility, and hardness. Electropolishingis often referred to as the opposite process of electroplating, whereas the material is removed from a metallic workpiece in...
A.As Erik mentioned, the composition of coins has changed over the years. Anyone interested in weighing PENNIES should be aware that the composition of pennies changed in 1982. For dates of 1982 and earlier, pennies are 95% copper and 5% zinc and weigh about 3.1 grams. For dates of 1982 ...