发布时间:2025-01-29 13:31:19
1、PEI塑料是一种无定形热塑性聚醚酰亚胺。它是高性能和良好加工特性的结合,兼具耐高温性及高强度、模量和范围广泛的耐化学剂性。
2、PEI树脂天性阻燃。某些牌号在厚度为0.25时,具有UL94-V0额定值,其它牌号在极广的温度和频率范围内,显示出高的介电常数和损耗因数。
我们俩夫妻有一个儿子,买房买95平米三居室还是118平米三居室的好点
2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19北京的那 绿大地开心农场 提供租地种菜还有温室大棚价格贵吗怎么样
2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19家里有老人为了方便在南昌买了一楼的房子但是有点潮湿该怎么装修呢
2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19 2025-01-29 13:31:19