ISO 9001: 2015 daim ntawv pov thawj ntawm kev tswj xyuas zoo Daim ntawv qhia txog cov qauv banded thiab non-metallic suav nrog ntawm rab koob valve forging dawb paug ISO 14001: 2015 Environmental Management Systemcertification daim ntawv pov thawj ISO 45001: 2018 Kev Tswj Xyuas Kev Noj Qab Haus Huv Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb Cov Khoom Siv Hluav Taws Xob Cov Lus Qhia Valves daim ntawv pov thawj Cov Khoom Siv Siab Cov Lus Qhia 4.3 cov ntaub ntawv pov thawj EAC-Fittings daim ntawv pov thawj EAC-Valves daim ntawv pov thawj ABS thiab ASTM F1387 cov khoom tsim kev soj ntsuam daim ntawv pov thawj ABS thiab ASTM F1387 tsab ntawv ceeb toom kev xeem Kev nyab xeeb ntau lawm standardization daim ntawv pov thawj Cov cuab yeej tshwj xeeb tsim cov ntawv tso cai - cov kav dej siab ISO15500 Tube Fittings soj ntsuam daim ntawv pov thawj ISO15500 pob valve tshuaj xyuas daim ntawv pov thawj HIC daim ntawv ntsuam xyuas ntawm txias kos stainless hlau bar HIC xeem daim ntawv qhia ntawm koob valve forging dawb paug Daim ntawv tshaj tawm ntawm cov khoom siv hlau tsis muaj banded nyob rau hauv stainless hlau txias Tshuag