... (DN100 mm-1800 mm);Use:using forming a free forging machining and other processes to complete processing; the part is mainly used ... HanDe Axle Co.,LtdCooperation mode:Provide all kinds of materials to map production and processing.Material: 5083,2A50,5A05,2A10, ... treatment: Transparent oil, rust-proof oil. High voltage electric power equipment in forging connecting flange 5083,6A02,6061,6063,2A50,5A05