These series are mainly designed for tensile, compression, bending and shearing test of metallic and non-metallic materials. With special accessory, they can complete mechanics performance test of rubber, belt, chain, steel, cable, cement, brick, concrete and other materials. They are wildly used in machinery, building engineering and material, space flight & aviation, railway, metallurgical, textile, petrochemical and production industry, scientific research institute, college, university and other fields.