[行业标准] QB 1648-1992 聚乙烯着色母料 色母料企标
P:2007-04-03 15:44:02
1
求助如题的标准内容,谢谢!
coated steel tape armoured cable - 涂层钢带铠装电缆 (0) 投诉
P:2007-04-04 13:15:45
2
cable with tube-balloon insulation - 鱼泡式绝缘电缆 (0) 投诉
P:2007-04-04 15:40:04
3
TPC - tough pitch copper电解铜,韧炼铜 (0) 投诉
3