18k

The newly developed 18K gold electroplating solution has brought about high quality gold electroplating .

新研制了18K金镀液，获得了优质金镀层。

Development of GF_ ( 18K ) Cement Tank Cars

GF（18K）型水泥罐车的研制

Freshwater pearl pendant , 18K gold , shiny bright , welcome to order .

淡水珍珠吊坠，18K金，光泽亮，欢迎订购。

Described are the structure , performance , features and test of the GF_ ( 18K ) cement tank car .

介绍了GF18K型水泥罐车的结构、性能、特点及试验情况。

He effect of Al content on chromaticity of 18K Au-Cu-Al cast alloy has been studied by adopting of modern chromaticity system and X-ray analyse .

运用现代色度系统、X射线分析等方法，研究了Al对AnCuAl合金色度的影响。

We have 14K and 18K gold necklaces , chains and earrings . A sharp metallic rapping came on the front door .

我们有14K和18K的金项链、手链和耳环。前门上响起一阵刺耳的金属敲击声。

The company has started taking pre-orders on August 2 and plans to begin shipping the 18K gold rings in November , and the stainless steel variant in December .

该公司已于8月2日起接受预订，并计划于11月上市18K金戒，12月上市改进版不锈钢材质对戒。

By adjusting Zn content , the alloys with 18K or 14K gold colors surface can be obtained , but those with 24K gold color surface can not be obtained .

通过调整Zn质量分数，可获得色泽接近18K和14K金表面色的合金，但不能获得色泽接近24K金表面色的合金。

Why the premium ? For one , the Italy-made ring is plated with either 18K gold or silver , and there are five options for the gemstone : blue topaz , opalite , onyx , sapphire and ruby .

为什么会这么贵呢？首先，这款意大利制造的戒指镀有18K金或银，此外还有五种宝石供买家选择，分别是蓝色托帕石、不纯蛋白石、缟玛瑙、蓝宝石和红宝石。

18K gold decoration items have many advantages and are sold well in the market , but most of them contain the element of Ni , which is forbidden to be used by the state criteria GB 11887-2002 . There has been a strong reflection from the market .

因具有诸多优点而畅销市场的18K金饰品大多含有Ni。国家标准GB11887-2002关于饰品不含Ni的限制在市场上引起了强烈反映。