1.Character:Light weight, 2.high strength, 3.good trough ability and impact resistance 4.durable capability 1.Standard: DIN, AS, JISK, ISO,etc 2.Application:Widely used in mining, power plant, construction, port, metallurgy, chemistry, and food industries. 3.Character: Light weight, high strength, good abrasion/acid/alkali/heat/humidity resistance, good trough ability and impact resistance 4.NN( ...