■ Material: high quality alloy steel
■ Surface treatment: self-color, polishing, blackened,
■ Painted, plastic coating, electric galvanized, etc.
■ Manufacture standard: ISO, DIN, BS, JIS, ASTM
■ Quality grade: G80,
■ Safety factor: min.4
■ Product marking: "TH" or special marking required by client
■ Non-standard chain according to the clients' requirements.