OEM Vacuum Flange SS304 Stainless Steel Fkf16/25/40/50 Kf Blind Blank Flanges for Semiconductor. High-Quality Materials: Manufactured from 304/304L/316L stainless steel for durability. Quick Assembly Design: Aluminum clamp with single wing nut allows tool-free disassembly. High Vacuum Performance: Seals effectively up to 200 degrees centigrade for baked applications. OEM/ODM Support: Customized drilling, bending, and stamping processes available. Fast Delivery: Stock items shipped within 5 workdays; custom orders in 10-15 days. Comprehensive Warranty: All products guaranteed for 12 months against defects. Rapid Response Support: Any issues receive a response within 12 hours. Wide Size Range: Available in KF16, KF25, KF40, and KF50 standard sizes.