GL_IInau'in U-nau'in radiator ne karfe na biyu zagaye (biyu layi) ko multi-zagaye (huɗu layi)Air zafi musayar.The fuka bututu da φ18 × 2mm seamless karfe bututu da aka kewaye a kan 10 × 0.3mm karfe band, a cikin wani spiral, za a iya samun daban-daban surface bututu da yawa, bututu tsawon, layi da yawa bayanai. The bursting ruwa bututun ne a wannan gefen, aiki zafi tushen ne tururi ko high zafi ruwa, sanyi tushen ne low zafi ruwa ko gishiri ruwa, za a iya amfani da shi a matsayin iska dumama ko iska sanyaya, shi ne wani tattalin arziki m mradiator.
GL_IIModel lambar hanyar ne: model daya layi lambar - surface bututun tsawon (inch) idan an yi amfani da hudu layi, surface bututun lambar ne 10, bututun tsawon ne 42 inch, shi ne GL_IIAika 4-10.