当石油开始流从年底，胶管，关闭排气阀，删除胶管，然后收紧流血阀。

When oil begins to flow from end of hose, close bleed valve, remove hose, then tighten bleedvalve.

美国红阀系列中的胶管阀采用专利的弹性套管设计，以其精确的、 重复性高的控制特点，广泛应用在腐蚀性化学品、 石灰、 矿物泥浆等生产领域。

American Red Valve's Roller Pinch Valve which has patented sleeve, is widely used in corrosivechemicals, lime, mining slurry with precise, repeatable control.

电接点、磁翻板、光控液位控制器、滤清器、充氮车、充气工具、截止阀、高压胶管总成。

Electric contacts, magnetic turnover plate, photo-control liquid level controllers, accumulators, Nitrogen-filling vehicle, gas-filling tools, stop valves and high-pressure rubber tube assembly.