... double filter device；二级滤清器装置 double flange；双法兰[凸缘] double flange roller；双缘滚轮 ...
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for double flange bolting 为双法兰螺栓 ; 双法兰螺栓
double flange roller 双缘滚轮
double flange track roller 双缘履带支重轮
double flange ring 双边钢领
double flange roller tread 双缘滚轮踏面
double flange reducer 双法兰减速器
Double-flange compensatory couplings 双法兰限位伸缩器
Electric double-flange eccentric butterfly valve 点动双法兰偏心蝶阀
Double Flange Pipe 双法兰接口球墨铸铁管
Sizes not available in double flange design are offered as lug body design, see page 12.
有些通径的阀门没有双法兰结构，对于这些通径的阀门，可提供凸耳阀 体结构，请参阅第12页。
Flange structure, double sealing rubber ring, so anti-corrosion, waterproof performance.
法兰式结构，双层密封胶圈，故防腐、防水性能好。
The double shell side heat exchanger for use in hydrogenated unit is divided into two kinds of flange type and thread lock ring type.
加氢装置用双壳程换热器分为法兰式和螺纹锁紧环式两种。
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