... & Test of Building Engineering (No.: BETC-QC1-2009-304R, refer to GB/T8484-2008), the result ... Supervision & Test of Building Engineering (No.:BETC-QC1-2009-305G), refer to GB/T2680-1994, GRP of ... Supervision & Test of Building Engineering (No.:BETC-QC1-2009-304S), refer to GB/T50121-2005, GRP of ... Supervision & Test of Building Engineering (No.:BETC-QC1-2009-305DA), refer to GB/T9962-1999, result shows ...