Al'umman Amurka don gwaji da kayan yau da kullun, Astm. Wanda aka sani da ƙungiyar ƙasa da ƙasa don kayan gwaji (IATM). Al'umman Amurka don kayan da gwaji (Astm) A halin yanzu yana daya daga cikin manyan kungiyoyi masu girma a duniya kuma kungiya ce mai zaman kanta mai zaman kanta. Astm yana da kusan membobi 34,000, kusan 4,000 su daga daruruwan kasashe a wajen Amurka. Astm ya ci gaba da ka'idodi 10,000.

Taya murna ga UbangijiKagnang Dhdz ya gannikan karbarTakaddun ASM

Astm, ƙarfin iska na Gagghuang, ƙwarewa a cikin samarwa da kuma tallata bayanai daban-daban naflanges, yi zura daZa'a iya musayar bayanai, za'a iya tsara shi gwargwadon bukatun abokin ciniki, yi maraba da sabbin abokan ciniki, ingancin hoto ...

form: ShanxiFallasa wutar lantarki ta kgaghuangMasana'antu Co., Ltd