[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
polyethylene thread and tube insulated cable - 聚乙烯绳管绝缘电缆 (0) 投诉
P:2009-11-30 16:36:31
2
医用的PVC胶粒,
difference of level - 高度差;落差 (0) 投诉
P:2009-11-30 17:10:27
3
motor-driven roller - 马达传动轮 (0) 投诉
P:2009-12-01 13:22:42
4
test of resistance to flammability - 耐燃性试验 (0) 投诉
4