Proses nggawe pipa mulus stainless steel: 1, steelmaking → 2, rolling baja babak → 3, perforasi (annealing) → 4, kadhemen digambar → 5, rolling kadhemen (annealing, demagnetization, pickling, cleaning) → 6, polishing tembok → 7, polishing tembok njaba → 8, tekanan udara ...
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