合同保证体系
contract guarantee system
施工质量保证体系
construction quality guarantee system
质量保证体系
Quality assurance system
quality control system
quality ensurance system
quality certification system
quality management system
quality-guarantee system
quality guarantee system
training quality assurance system
QAS
quality assurance sys tem
quality assurance systems
quality system
quality-assurance system
质量保证体系构建
construction of quality system
保证保险合同
guarantee insurance contract
抵押保证证券
CMO (collateralized mortgage obligation
职工保证保险
fidelity guarantee insurance
CO2气体保护单面焊
CO2 one-side welding
KeywordCO2 gas shielding one-side welding