Iyo GF Coupling ine maviri simbi hubs ane ekunze akashongedzwa korona uye akavharwa mazino egiya, Oxidation yakasviba dziviriro, yakabatana neyakagadzirwa resin sleeve. Sleeve yacho inogadzirwa kubva kune yakakwira molecular huremu polyamide, ine thermally conditioned uye yakaiswa mukati meiyo lubricant yakasimba kuti ipe hupenyu hurefu husina kuchengetedza. Sleeve iri rinoramba kunyorova kwemuchadenga uye tembiricha yekushanda kubva -20˚C kusvika +80˚C ichikwanisa kumira 120˚C kwenguva pfupi.