是轿车里面用的,这东西目前市场上都是主要靠进口配件的
利润市场有多大?有熟悉的没?
据说投资不是很大,一套进口线,一般煤老板都能摆平投资.
但是高低产品价格差异很大;
-------------------------------
图片胆小误入...

最后俩图的说明
Grey and silver are standard steel and aluminum, respectively. Blue is high-strength steel, orange is very-high-strength steel, yellow is extra-high-strength steel, and red is ultra-high-strength steel. Apparently, the guys in charge of steel nomenclature in the industry are not extremely creative.
Note that the tough - and expensive - ultra-high-strength stuff is used in the most critical of areas - the side impact beams and in the B-pillar. Also interesting is the honeycomb of extra-high-strength steel that's used in the rear doors.
--
修改:thinkpadfan FROM 141.223.237.*
FROM 141.223.237.*




附件(73.9KB) door_side_impact_beam_1999.pdf