This is our new product-a CD tower system. As you can see, it’s attractive and stylish. The tower is made of wood and it holds twenty CDs. Let me tell you its dimensions. It’s 33 centimeters high, 18 centimeters long and 20 centimeters wide. It comes in three colors: black, brown and white. And its selling price is just under $25—a very competitive price.

It’s ideal for storing CDs and CD-Roms. It has several special features which should appeal to our customers. Firstly it has a soft-touch mechanism. This means you just touch a button and the CD comes out smoothly and quietly. Another advantage is that it’s easy to select the CD you want because the title is clearly displayed. A very useful feature too is that it’s simple to use. You can open the CD case without taking it off its tray. The tower is well-designed. It’s robust , elegant and user-friendly. It’s very flexible-I forgot to mention that—because the towers are modular, so you can put one on top of the other. That’s a big advantage for people who have lots of CDs. And one other thing, you can save $15 if you buy two units instead one.

I think the CD tower will be one of our best-selling products. It really does meet the needs of music lovers. It’s so practical, it’s a high-quality product, and great value for money.

Are they any questions you’d like to ask?

 

第二篇：产品介绍与使用范例

ECH 钢之洁 ISO9001:2000 环保性证书

多功能金属表面清洗剂 GZJ-01 (4AIBIM100%)

GBIT-12612

钢之洁环保型多功能高效表面清洗剂

GZJ，它是由多种无机、有机化学药品按一定比例进行加工复合反应而

成，其中的酸性氧化物、缓蚀剂、渗透剂、剥离剂、络合剂、表面活性剂及含H、

C、P和N基德特殊杂环化合物相互作用，渗入金属和氧化铁垢的界面，氢离子、

氧化性离子及阴离子等快速进行化学反应，并在裸露的金属表面不断形成致密完

整的钝化膜，使除锈钝化一步完成。清洗药剂GZJ在常温下（15-45摄氏度），

静态浸泡2-4小时即可除去氧化铁垢，并形成钢灰色的钝化膜。此种钝化膜耐腐

蚀性强，它与其它钝化膜的比较结果见下表：

通过各种针对性的实验室试验，证明GZJ清洗药剂耐腐蚀速率强（小于1克

/平米时），钝化膜质量优良（CuSO4滴定大于10s），经高浓度长时间浸泡，对

20号钢、SA-210C、钢102,、12CrMoV、T91、15CrMo、TP304等锅炉钢材的金

相 无损伤，清洗后的金属表面对汽轮机油无影响，浓度10%GZJ药液经上海市

产品毒性质量监督检验站检验，结论是无刺激性，实际无毒。

目前已在多家电厂进行过炉前系统管道清洗剂锅炉炉本体清洗，包括安顺电

厂2*300MW机组，黔北电厂4*300MW机组、云南巡检司发电厂1*135MW机

组，习水发电厂4*135MW、纳雍电厂8*300MW、贵阳电厂扩建工程1*200MW、

鸭溪电厂4*300MW、云南阳宗海发电厂800米管道、上海嘉定弯管厂5700米省

煤器10屏及10500米三次在加热器83屏、华东电厂等；在大型建筑工程防腐方

面也有很多，包括北京奥运体育场鸟巢、水立方、北京国家电视台新大厦等；在

造船方面，如上海江南造船厂目前在造的航空母舰；在冶金方面；如上海宝钢特

钢等；以及在造桥方面铁路工程等等。经过大量的实践证明，用钢之洁清洗后的

金属，钝化膜致密完整，呈钢灰色，清洗后无残留氧化物，CuSO4滴定大于11S，

腐蚀速度为0.75克每平米时。清洗效果优良。