本厂专业生产国标加长型吊环螺钉,备有10*60,70,80,90,100,120mm. 12*60,70,80,90,100,120mm. 16*60,70,80,90,100,110,120,140,150,200mm. 20*60,70,80,90,100,120,130,150,200mm. 24*60,70,80,100,120,160,200,260. 30*70,100,120,150,200,300mm. 36*100,200,300,400mm长现货吊环。 订做各种材质加长英制,美制,徳标异型吊环。