... *1774*1180mm Double-arms hooks, Crane Arms, Crane hooks, high quality forklift attachments, attachments for forklift truck,attached hook 1. Structure ... . Material: Arm: Q235B Hooks: DG34CrMo3. The specification of single arm beam is as customer's design.4. Surface treatment ... all kinds of machining parts and rivet-welding parts with high quality and competitive price. Such as: slide guide, slide plate ...