x Sealing head 密封头
The number of sealing head 封罐头数
Head sealing pressure 头部密封受压
head sealing 线封式胶装
sealing ring for valve head 阀盖密封圈
ball head sealing 球头密封
Another without ruffled taper sealing head has straight edge docking part.
另无折边锥形封头也有直边对接部分。
It takes only two to four irradiations to inspect a sealing head weld by using the technology.
使用这种方法，一般只需两到四次透照就能完成封头焊缝的探伤。
Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。
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