recognized European designs single forged hooks• WLL : 3.2t to 2.000t. Larger ones as your request.• Hook FORGED and HEAT TREATED.• Material: carbon ,Website:http://www.allwherecrane.com, alloys and super alloys. Stainless steels as your request.• Mechanical properties : P, V.• Safety Factor: min. 4:1 with the highest material grade.• Load Test: requested.• Certificate : CE certificate• service:fast delivery,high quality,competitive priceIf you have any require,please contact with me. We must meet your needs.