Umbutho waseMelika woVavanyo kunye neZixhobo, i-ASTM.Eyayisaziwa ngokuba yi-International Association for Testing Materials (IATM).Umbutho waseMelika weZizinto kunye noVavanyo (I-ASTM) ngoku ngowona mbutho mkhulu wophuhliso lwemigangatho kwihlabathi kwaye ungumbutho ozimeleyo ongenzi nzuzo.I-ASTM inamalungu amalunga nama-34,000, malunga nama-4,000 kuwo asuka kumakhulu amazwe angaphandle kwe-United States.I-ASTM iphuhlise ngaphezu kwemigangatho ye-10,000.

Sivuyisana nabo ngokufudumeleyoDonghuang DHDZ forgingsekufumaneni iIsatifikethi se-ASTM

I-Astm, amandla omoya we-donghuang, okhethekileyo kwimveliso kunye nokuthengiswa kwezinto ezahlukeneyo zeiiflange, forgings, iinkcukacha zigqityiwe, zinokwenziwa ngokweemfuno zabathengi, bamkelekile abathengi abatsha nabadala, ukubonisana nomgangatho...

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