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Baja saluran memotong tepi meninju kepala jahitan 90 derajat sudut, besi sudut meninju sudut lipat cetakan
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Untuk mempelajari mesin meninju dan memotong baja saluran sudut ini, seorang mahasiswa pascasarjana di Hebei masih lajang pada usia 48 tahun! Peralatannya tidak hanya mudah dioperasikan, tetapi juga memiliki mesin untuk memotong dan memotong sudut.
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Pukulan gabungan multi-fungsi dapat memotong sudut baja saluran, dan sudut geser dapat ditusuk.
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