BUNa - N is a general purpose oil resistant polymer known as nitrile rubber.丁腈橡胶(BUNa-N )是一种多用途抗油品腐蚀聚合物,称为腈橡胶.Buna - N disc valves limited to 180 H temperatures.丁腈橡胶阀瓣阀门的温度限制在180℉以下.Ten thousand desperate fighting men, t...
既然你要写书的话, 你需要一台运转快, 容量大的机子.要有多媒体功能的.Now that you're writing a book, you need a fast, high - capacity display , with multimedia system.特点: 具有良好自愈性 、 比率容量大 、 损耗低 、 可靠性高.Features: Excellent self - healing, high capacit...