合金结构钢各牌号的主要用途
20mn2,30mn2,35mn2,40mn2,50mn2,30mn2mow,27simn,35s9mn,42simn,20simn2mov,25simn2mov,37simn2mov,4ob,45b,50b,40mnb,45mnb,20mn
2016-05-29 18:43:14 17820mn2,30mn2,35mn2,40mn2,50mn2,30mn2mow,27simn,35s9mn,42simn,20simn2mov,25simn2mov,37simn2mov,4ob,45b,50b,40mnb,45mnb,20mn
2016-05-29 18:43:14 178