... motorcycle power steel pipe1. material: Q195,Q235,20#,45#, 45MN,65MN.2. wire diameter: 20-185mm3. wall thickness: 1.5 ... high precision,good finish, internal cleanliness is good,steel tube is under great pressure,cold bending deformation,mouth ... oil cylinder boiler equipment medical instrument equipment, etc.steel pipe samples galvanized seamless steel pipecold drawing welded steel pipealloy steel pipe