Our Hydraulic Seals To International Development

Comparing the standards of domestic and foreign, is not difficult to find a large gap between the two. Only in terms of fastening material standard, domestic steel product standards do not provide specific material, only stipulates that the mechanical properties of the chemical composition requirements, compared with individual American standards such as ASTM standards on steel concrete materials for specific provisions. Because no corresponding grades of steel in China, cannot dock with international standards, will naturally bring some difficulties to export. Although some domestic enterprises have begun to realise it, new steel fastener standards developed abroad, but this is just a small step in the process, spread and perfection of the international standards need to be in the industry as a whole.