Akụkọ ụlọ ọrụ
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Ndị ọkachamara ụlọ ọrụ fastener nke mba na-eleta ma duzie ha
Na Disemba 2020, emere ọgbakọ nke anọ nke anọ kwa afọ nke National Fastener Standardization Technical Committee na Handan City, Hebei Province.Ihe karịrị ndị nnọchiteanya 200 gara nzukọ kwa afọ, gụnyere ọtụtụ ndị ọkachamara ama ama na ụlọ ọrụ fastener si n'akụkụ nile nke t ...GỤKWUO
