裁缝用填料衬垫上衣的肩部。
订购符合API 607标准的阀门将配置石墨填料和衬垫。
Valves ordered for compliance with API 607 will be provided with graphite packing and gaskets.
氨基甲酸乙酯衬垫采用定点浇铸工艺,在整个阀体、阀腔、填料腔和法兰面区域表面形成全面连续的覆盖衬垫。
The urethane liner is cast in place to form a continuous liner throughout the entire body, chest, packing chamber and flange face area.
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