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Maiwei Machinery research and development team was in PET industry more than 16years experience, specializing in self -developing manufacturing jar preform mold.
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Shaanxi Achieve Chem-Tech Co.,Ltd: We're well-known as one of the leading chemical equipment, pill press equipment, short path distillation, crystallization reactor manufacturers and suppliers in
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If you have to design a two way concrete slab with beams, which method (no structural analysis software) will you prefer? Direct design method, Equivalent method ...