Seiko cast zinc alloy ferrule: uses a zinc alloy ferrule produced by Seiko casting with carefully selected material for strength and durability. Eliminate air leakage: employs lowshrinkage POM and PBTGO materials to prevent plastic burst during use and maintain reliable seals. Key benefits: reduces leakage risk, prevents plastic burst under pressure, and improves longterm stability and service life of the assembly. Function and compatibility: designed to integrate with Seiko cast ferrule assemblies and compatible fittings, maintaining tight tolerances under typical operating conditions. Material and performance: lowshrinkage POM and PBTGO contribute to consistent performance, stable sealing, and resistance to pressure cycling. Use scenarios: 1) Pneumatic tool assemblies in manufacturing lines where consistent air pressure and leak prevention are critical. 2) Seiko cast ferrule joints in automated equipment and appliances that require durable, leak connectors. 3) OEM replacement parts for existing Seiko cast fittings in hoses or piping systems to extend service life and reliability.