... UT and PT must be done by LIZ TECH inspectors or LIZ approved operators, LIZ will check their Qualifications before UT or ... the cutomers can assign a logisitics company also.Company ProfileDalian LIZ TECH International trading Co., Ltd is located in the ... ISO 9001:2008 Quality System Certification.On the supplying side, LIZ TECH already approved some qualified companies, including qualified Foundry, ...