ISO 9001: 2015 daim ntawv pov thawj ntawm kev tswj hwm zoo Daim ntawv qhia txog kev sim ntawm cov qauv banded thiab cov hlau tsis suav nrog ntawm koob valve forging dawb paug ISO 14001: 2015 daim ntawv pov thawj kev tswj hwm ib puag ncig ISO 45001: 2018 daim ntawv pov thawj kev tswj hwm kev noj qab haus huv hauv chaw ua haujlwm Daim ntawv pov thawj ntawm cov khoom siv siab Daim ntawv pov thawj khoom siv rau Cov Khoom Siv Siab 4.3 Daim ntawv pov thawj EAC-Fittings Daim ntawv pov thawj EAC-Valves Daim ntawv pov thawj ntsuam xyuas tsim khoom ABS thiab ASTM F1387 Daim ntawv qhia txog kev sim qauv ntawm ABS thiab ASTM F1387 Daim ntawv pov thawj kev tsim khoom siv kev nyab xeeb Daim ntawv tso cai tsim khoom siv tshwj xeeb - cov khoom siv kav dej siab Daim ntawv pov thawj tshuaj xyuas ISO15500 Tube Fittings ISO15500 daim ntawv pov thawj tshuaj xyuas lub pob valve Daim ntawv qhia txog kev xeem HIC ntawm cov hlau tsis xeb txias Daim ntawv qhia txog kev xeem HIC ntawm lub koob valve forging dawb paug Daim ntawv qhia txog kev sim ntawm cov hlau tsis muaj hlua khi hauv cov khoom siv txias stainless hlau