Good leather brightener require bright, waterproof, breathable, resistant to twists and turns, wearable, such as excellent performance.

好的皮革光亮劑要求具有光亮、防水一级A片岛國、透氣处女开破视频、耐曲折、耐磨等優(yōu)良的綜合性能。

The cathodic polarization curve of the brightener is similar to those of the abroad ones .

酸銅光亮劑耐高溫可達 40℃嗯好深啊用力哦啊视频，其深鍍能力中国三级黄色片18岁美女全体逼、均鍍能力與國外酸銅光亮劑相當。

The Z brightener was prepared successfully,and the technology and mechanism of copper electroplating was studied.

通過對復配光亮劑酸性光亮鍍銅工藝研究手机在线免费看黄色片网站，得到該體系適宜的工藝條件為：H_2SO_4為160～200g/L超碰地址、CuSO_4·5H_2O為80～100g/L、N為0.0010～0.0014g/L视频:黄片公司、M為0.0032～0.0042g/L欧美黄色成年网站视频、PEG-6000為0.060～0.100g/L、Cl~-為40～80 ppm黄色工厂在线看、溫度10～40℃、電流密度0.8～4.0A/dm~2国产97av在线播放。

The effect of single component of inorganic metal salts and organic compounds, and combined brightener s on deposits of bright electroless nickel plating were studied.

分別研究了單組分無機金屬鹽人人草网、有機物以及組合光亮劑對化學鍍鎳層光亮性的影響。

Because the traditional resolver cellulose nitrate lustre-coating agent it does not bear the aging, the resistance to cold to be bad, shortcomings and so on hygienic performance difference receive the impact, but emulsion cellulose nitrate lustre-coating agent, although the comparison environmental protection and the hygienic performance are high, but because became the membrane glossiness to be bad and the emulsion long-term laying aside does not stabilize has limited its application.

傳統(tǒng)的溶劑型硝化纖維光亮劑因其不耐老化免费成年人在线看、耐寒性差一级婬片又大又长又粗、衛(wèi)生性能差等缺點而收到?jīng)_擊，而乳液型硝化纖維光亮劑雖然比較環(huán)保且衛(wèi)生性能較高欧美熟妇free性XXXX，但因成膜光澤性較差和乳液長期放置不穩(wěn)定而限制了其應用男女激情网站。

The cellulose nitrate lustre-coating agent's has surpassed for 100 years in leather Tu Shi application, because it surpassed the casein, the acrylicresin, the polyurethanes lustre-coating agent and the low in price obviously in the top layer Tu Shi overall performance obtained the widespread application.

硝化纖維光亮劑在皮革涂飾中的應用已超過一百年，因其在頂層涂飾中的綜合性能明顯優(yōu)于酪素澳美午夜福利、丙烯酸樹脂色综合91、聚氨酯類光亮劑且價格低廉而得到了廣泛的應用。

The cellulose nitrate lustre-coating agent becomes the leather outward appearance luminously, artistic, to be acidproof, to be water resistant, Cheng Ge has high does wet scratching, the shortcoming does not bear the aging, the resistance to cold is bad.

硝化纖維光亮劑成革外觀光亮国产91视频有限公司、美觀噜噜嘿在线无码视频、耐酸、耐水www。.你懂得，成革有較高的干濕擦度欧美综合色网站，缺點是不耐老化，耐寒性較差免费激情在线视频国产。

Therefore, when configuration resolver leather lustre-coating agent uses the alkyd resin and the melamine xylenol-formaldehyde resin and the cellulose nitrate mix method, the retention cellulose nitrate Cheng Mo merit, improves it not to bear the aging, the cold resistant bad shortcoming, undergoes the repeated test, compounds the successful resolver lustre-coating agent to have the very good radiance and softness, bears the stretch, bears scours, becomes the membrane to be smooth.

因此黄色视频在线免费观看无码高清强奸，在配制溶劑型皮革光亮劑時采用醇酸樹脂和三聚氰胺甲醛樹脂與硝化纖維混合的方法，保留硝化纖維成膜的優(yōu)點亚洲国产精品日本一区二区，改進其不耐老化91人妻论坛国内入口，耐寒性較差的缺點，經(jīng)過反復試驗久久99精品国产免费，配制成功的溶劑型光亮劑有很好的光亮度及柔軟度国产嫖妓一区精品视频，耐拉伸，耐擦洗，成膜光滑国产精品-色哟哟。

Though infinitely small and fragile in comparison withthe powers of darkness, it is still a light, my only light.

雖然相比于黑暗之地的籠罩它顯得無比渺小與脆弱亚洲欧美中文日韩V日本，但它仍然是一點光亮——我所擁有的唯一光亮。

Though infinitely small and fragile in comparison with the powers of darkness, it is still a light, my only light.

雖然相比于黑暗之地的籠罩它顯得無比渺小與脆弱欧美一级媱片^片久久精品，但它仍然是一點光亮——我所擁有的唯一光亮大伊人一区在线视频。