[问题求助] PVC塑胶粒要求有耐γ射线
P:2009-11-30 15:19:28
1
哪位仁兄知道加什么助剂啊,不胜感激
SF6-insulated metal clad tubular bus - 六氟化硫绝缘封闭管状母线 (0) 投诉
P:2009-11-30 16:36:31
2
医用的PVC胶粒,
merry-go-round casting equipment - 转盘式浇铸设备 (0) 投诉
P:2009-11-30 17:10:27
3
portal pay-off and take-up - 门式收放线装置 (0) 投诉
P:2009-12-01 13:22:42
4
multi-stack bell-type annealing furnace - 多线捆钟罩式退火炉 (0) 投诉
4