Flat welding flange not only saves space, reduces weight, more importantly, to ensure that joints do not leak, has good sealing performance.
平焊法兰不仅节省了空间、减轻了重量，更重要的是确保接头部位不会发生泄漏，具有良好的密封性能。
This product has an excellent resistance to high and low temperature and good sealing performance.
本产品有优良的耐高低温性和良好的密封性能。
This annealing furnace has large furnace cavity, good sealing and heat insulation performance.
该炉型炉膛空间大，密封隔热保温性能好。
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