紧固材料 meaning in Chinese

fastener material
fastening material

With 12l s , 25 l s , 45l s , 60l s or 100l s with variety of connecting materials , for bitumen roofs , epdm roof sealings for gutters with contact sheet in stainless steel , copper and peraluman . pluvia contact foils , material made of pvc , epdm resistit , delifol and many more
吉博力虹吸雨水斗有12升秒25升秒45升秒60升秒及100升秒带或不带绝缘的，带或不带紧固材料的，适用于沥青屋面的，适用于檐沟的，不锈钢，铜或优质镁铝锰合金材质的安装片。