●Fireproof Structure Design
● Txhim khu kev sealing ntawm Valve qia
●Anti-static Structure
● Xauv Thiab Tiv Thaiv Kev Ua Phem
● Ob Chav Thaiv Thiab Ntshav (DBB)
● Tsawg Ua Haujlwm Torque
● Emergency Sealing Device
●Sealant Injection Device
● Txhim khu kev ruaj ntseg Sealing Structure
● Ib leeg Sealing (Tsis siv neeg siab nyem hauv nruab nrab kab noj hniav ntawm Valve)
● Ob chav Sealing (Ob chav Piston)
●Safety Relief Device
●Secial Structure of Automatic Pressure Relief towards Upper kwj
● Txhaum pov thawj Stem
● Corrosion Resistance Thiab Sulfide Stress Resistance
● Extension Stem
| ● Lub Chaw Kho Dej | ● Drilling Rigs |
| ● Ntawv Kev Lag Luam | ● Roj cog |
| ● Qab Zib Kev Lag Luam | ● Cov dej txias txias |
| ● Breweries | ● Cua sov & cua txias |
| ● Kev Lag Luam Tshuaj | ● Pneumatic Conveyors |
| ● Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob | ● Compressed Cua |