GL Stainless simbi hollow pini roller cheni inogadzirwa zvinoenderana neISO 606, ANSI, uye DIN8187 mazinga ekugadzira. Yedu hollow pini Stainless simbi cheni inogadzirwa kubva-yemhando yepamusoro 304-giredhi simbi isina tsvina. 304SS ndeye yakanyanya anti-corrosive zvinhu ine yakaderera kwazvo magineti kudhonza, zvakare inokwanisa kushanda yakaderera kusvika kune yakanyanya kupisa tembiricha pasina kushatisa kushanda nekuita kugona kwecheni.