Hostaform POM C9021GV3/10 33 德国赫斯特

聚甲醛塑料，俗称赛钢，为结晶性热可塑性塑料，具明显熔点165~175℃，性质Zui接近金属。 

优点  1、具高机械强度和刚性

2、Zui高的疲劳强度

3、环境抵抗性、耐有机溶剂性佳

4、耐反覆冲击性强

5、广泛的使用温度范围(-40℃~120℃)

6、良好的电气性质

7、复原性良好

8、具自已润滑性、耐磨性良好

9、尺寸安定性优  

缺点  1、加工过程若长时间高温下易起热分解

2、无自熄性

3、抗酸性差

4、成形收缩率大  

用途  电子电器：洗衣机、果汁机零件、定时器组件

汽         车： 车把零件、电动窗零件

工业零件：机械零件、齿轮、把手、玩具、螺杆

 From behind the closed window of Don Corleone's "office,"a slightly raised corner room, Thomas Hagen watched the weddingparty in the festooned garden. The walls behind him were stackedwith law books. Hagen was the Don's lawyerand acting153 Consigliere, or counselor154, and assuch held the most vital subordinate position in the familybusiness. He and the Don had solved manya knotty155 problem in this room, and so when he saw theGodfather leave the festivities and enter the house, he knew,wedding or no, there would be a little work this day. The Don wouldbe coming to see him. Then Hagen saw Sonny Corleone whisper in LucyMancini's ear and their little comedy as he followed her into thehouse. Hagen grimaced157, debated whether to inform the Don,and decided158 against it. He went to the desk and pickedup a handwritten list of the people who had been granted permissionto see Don Corleone privately159. When the Don entered theroom, Hagen handed him the list. Don Corleone nodded and said,"Leave Bonasera to the end."