1.
Rain proof performance test method for buses
GB/T12480-1990客车防雨密封性试验方法
2.
FLEXIBLE CONDUIT WITH EX(d).PACKING GLAND
防爆密封接头挠性管
3.
FLEXIBLE CONDUIT WITH WATER-PROOF PACKING GLAND
防水密封接头挠性管
4.
Sealed type bearings are mudproof, dustproof, and leakproof(grease) without the use of shaft seals.
密封型轴承具有防泥、防尘、防漏（脂）性能，无需使用轴密封。
5.
Rheological Behavior of Modified Polyurethane Waterproof-sealing Material
改性聚氨酯防水密封材料的流变特性
6.
Dust proof performance-Test method for buses
GB/T12478-1990客车防尘密封性试验方法
7.
Influence of sealed water-based waterproofing agent on concrete's capability
浅谈水性密封防水剂对混凝土性能的影响
8.
Dampproof , dustproof and defending greasy dirt and harmful gas , sealing strong , acidproof alkali antidetonation.
防潮、防尘、防油污及有害气体，密封性强、耐酸碱抗震。
9.
Standard for test method of insulating and sealing effectiveness of ulint in coating pipelines
管道防腐层补口绝缘密封性试验方法标准
10.
This feature will help increase the seal life and prevent premature failure.
这种性能有助于延长密封寿命,防止过早老化。
11.
Measures taken to prevent abrasion of the plunger in cylinder sleeve of a cryopump and to improve sealing performance
低温泵缸套柱塞防磨损和提高密封性的措施
12.
blowout preventer of three stage packer type
三段密封器式防喷器
13.
EX(d).ARMORED-CABLE PACKING GLAND
防爆铠装电缆密封接头
14.
WATER-PROOF ARMORED-CABLE PACKING GLAND
防水铠装电缆密封接头
15.
EX(d). PACKING GLAND FOR CONNECTING PIPE
接管式防爆密封接头
16.
BALL JOINT SEAL BOOT
球形接头密封防尘套
17.
WATER-PROOF PACKING GLAND FOR CONNECTING PIPE
接管式防水密封接头
18.
Due to shell has good dust seal to guarantee whole body anti explosion and to strengthen safety of coal feeder.
由于壳体的防尘密封，确保了整体防爆性，增强了给料机的安全性。