... products have got all the Certificates below: A. ISO9001: 2000 b, Any Third Party testing are accepted In order ... and chemistry equipments. All our products are authenticated by ISO9001: 2000. The main materials are 201, 304, 304L, 321 ... petroleum, chemical industry, chemical fiber, medical machinery, smelting, aerospace, Papermaking, foodstuff, shipbuilding, auto, environment-protection, boiler, heat ...