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An o-ring is a solid rubber seal shaped like a doughnut or torus. When pressed between mating surfac…
国家标准《圆板牙 第1部分:圆板牙和圆板牙架的型式和尺寸》 由TC91(全国刀具标准化技术委员会)归口,…
The using of hose to fight fire can be trace back in history to 400 B.C. The hose during this era wa…
NBR丁晴橡胶(Nitrile Butadiene Rubber)由丁二烯和丙烯腈经乳液聚合法制得的,丁腈橡胶主要采用低温乳液聚合法生产,耐油性极好,耐磨性较高,耐热性较好,粘接力强。其缺点是耐低温性…
Parker Polyfelx Pressure Diagnostic Hose 2020N 0-63Mpa2020N Hydraulic Hose (high pressrure) -S…