提供O型圈AS568-464内457.34*443.36*6.99 一、主要产品: O型密封圈特种橡胶也称特种合成橡胶。指具有特殊性能和特殊用途能适应苛刻条件下使用的合成橡胶。如耐300℃高温,耐强侵蚀,耐臭氧、光、天候、辐射和耐油的氟橡胶;耐-100℃低温和300℃高温,对温度依赖性小、具有低黏流活化能和生理惰性的硅橡胶;耐热、耐溶...
Rhizosphere soil enzymes as indicators of perturbations caused by enzyme substrate addition and inoculation of a genetically modified strain of Pseudomonas... enzymes as indicators of perturbations caused by enzyme substrate addition and inoculation of a genetically modified strain of Pseudomonas fluorescens ...