同时还对新旧标准套管内压载荷计算方法进行了对比分析。
It also compares the calculation methods of internal pressure load in the new standards with that in the old standards.
作为美国红阀公司的标准配置，我们可以提供双层(DW)，缩小流道(RP)，以及锥形套管以满足特殊需求。
Along with the standard Red Valve sleeve, we offer Double Wall (DW), Reduced Port (RP), and Cone sleeves for special applications.
这是美国红阀公司为夹管阀标准配置的套管材料。
This is Red Valve's standard sleeve material for Pinch Valves.
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