
The company prior passed ISO9001: 2000(NDV) international quality manage-ment certificate, API 6D, EEC PED/97/23/CE, ISO14001: 1996 environment management system, GB/T 28001 - 2001 vocation health&safety management system,GB/T 15496~15498-1995 standardization level,GB/T 19022.1 (IDT iso 10012-1) measure testing, adoption international standard( ISO ANSI API DIN JIS NF BS)eligibility, affirmance and special equipment making permission(AZ).