Product Standards: Our products have met international standard of SAE and have established the quality controlling system of ISO9000. Application:Our products main used for sand and rusts removing of cast iron cast steel, steel structures, steel plate, steel pipes, forging and surface treatment of oxidized workpieces Specification: S930(3.0mm), S780(2.5mm), S660(2.0mm), S550(1.7mm) S460(1.4mm),S390(1.2mm),S330(1.0mm) S280(0.8mm),S230(0.6mm),S170 (0.5mm),S110(0.3mm) ,S70(0.2mm) The Major Technological Index: Chemical compositions C :0.7-1.20%, Mn :0.35-1.20% Si:>=0.40% S: