... high strengh structural steel 2, high hardness and toughness 3, high hardenability 4, good performance in machining Sichuan Liaofu Special Steel Trading Co., Ltd.alloy ... at the customers' requirements Sichuan Liaofu Special Steel Trading Co., Ltd.Alloy strctural steel1, Grade: GB 30CrMnSi2, Chemical ... 1.103.Payment term: .L/C or T/T with 30% deposit4.Trade term: FOB5, Delivery time : within ...