型号 GB/T96.1标准 是否定制 是 类别 平垫圈 材质 钢 硬度 200HV 表面处理 锌镍合金 等效标准 DIN9021、ISO7093 更多表面处理 电镀锌、达克罗、久美特 品牌 上海米扬 价格说明 价格:商品在爱采购的展示标价,具体的成交价格可能因商品参加活动等情况发生变化,也可能随着购买数量不同或所选规格不同而发生...
One fifth of them died during the first year of t... José Mata and Pedro Portugal - 《Journal of Industrial Economics》 被引量: 1338发表: 1994年 Planktonic Foraminifera in Hemipelagic Sediments: Shell Preservation off Portugal and Morocco The preservation of planktonic foraminiferal shell ...
MANUFACTURING FACTORY OF LARGE UNIT OF CLEANSING T 优质文献 相似文献Creating tissues from textiles: scalable nonwoven manufacturing techniques for fabrication of tissue engineering scaffolds Electrospun nonwovens have been used extensively for tissue engineering applications due to their inherent similarities wit...