Double-Sealing 及密封
double - sealing 双密封
double sealing device 双密封装置
double-sealing fracturing 双封压裂
double sealing improvement 双密封改造
Steel double sealing cap 钢质双层密封盖
double-sealing and single-stick 双封单卡
The pot cover has applied double sealing.
锅盖采用双道密封。
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。
As a first insulating glass sealant in insulating glass production, to complete the double sealing with Silicone sealant, polysulfide sealant.
中空玻璃生产中第一道密封，与聚硫胶、硅酮胶配套使用，以完成双道密封。
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