Raws li cov khoom tseem ceeb steel, seamless steel yeeb nkab yog dav siv nyob rau hauv ntau yam teb, xws li roj av, tshuaj lom neeg kev lag luam, hluav taws xob fais fab, kev tsim kho, machinery manufacturing, thiab lwm yam. Ntawm lawv, DN36 seamless steel kav yog nyob rau hauv siab thov nyob rau hauv ntau yam dej num. Ua ntej, lub tswv yim ntawm seamless st ...
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