加拿大外贸
以下是内容，需要提炼的是2个产品的材料和硬度要求Here you can find the information about the material for the details that I sent to you some time ago.
The material requirement for gears is the following: they can be produced from the pure iron which is alloyed with carbon, copper, nickel, molybdenum, chrome, cobalt and other alloyed additives.
The density for 10³ kg/m³ is not less than 7.0.
Hardness HB is not less than 80-160.
纯铁加其他合金物 ，硬度不少于80HB？？
Here are the characteristics for the bushings: the base is copper. The mass concentration of the other metals is the following:
tin - 9.5-10.5 %
carbon - till 0.25%
iron - 0%
nickel - 0%
chrome - 0%.
The porosity should be 18-27 %
The hardness HB, MPa is not more than 350.
Breaking point at the bend is 100 MPa. The resistance while tension is 60.0 MPa. Impact elasticity is 13.0 kJoule/m³.
铜加其他 硬度不多于350HB？？？那里偏多了个MPA是什么意思？
评论
这个太专业了呀，一般的大吓是弄不明白的
加拿大电商昨天我把提单复件发给了客户，今天收到了他回信，如下： Dear Nicholas, please send all shipping documents. We will check B/L copy and we will reply ASAP. Thank you Best Regards ......................................... 加拿大电商刚从事这行半年，对电子行业不了解，自己整理了些，算是学习，供大家分享，也请大家补充。我毕竟是个文科生，对这方面知识严重欠缺。 DVD:英文全名是Digital Video Disk, 即数字视频光
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