锟斤拷軋锟斤拷母锟斤拷锟斤拷锟侥忥拷(qi锟斤拷ng)锟饺區(q锟斤拷)锟街等硷拷(j锟斤拷)锟斤拷锟斤拷锟教�(h锟斤拷o)锟介“PSB锟斤拷锟斤拷锟斤拷規(gu锟斤拷)锟絫锟斤拷锟侥忥拷(qi锟斤拷ng)锟斤拷锟斤拷小值锟斤拷锟斤拷锟斤拷P锟斤拷S锟斤拷B锟街別锟斤拷Prestressing锟斤拷Scres-thread锟斤拷Bars锟斤拷英锟斤拷锟斤拷位锟斤拷母锟斤拷锟斤拷锟界：PSB830锟斤拷锟斤拷锟斤拷锟侥忥拷(qi锟斤拷ng)锟斤拷锟斤拷小值锟斤拷830MPa锟斤拷鋼斤拷锟斤拷锟竭忥拷(qi锟斤拷ng)锟饺撅拷軋锟斤拷母锟斤拷锟斤拷锟斤拷锟斤拷鋼斤拷锟较滾軋锟斤拷锟斤拷锟斤拷母锟侥达拷直锟斤拷锟斤拷锟竭忥拷(qi锟斤拷ng)锟斤拷锟斤拷锟竭撅拷锟饺尺度碉拷直锟絣鋼斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷娑硷拷軘Q锟较庯拷锟叫冿拷(n锟斤拷i)锟斤拷母锟斤拷銜斤拷锟斤拷锟組(j锟斤拷n)锟斤拷銜接伙拷Q锟较庯拷锟捷紋锟斤拷锟斤拷帽锟組(j锟斤拷n)锟斤拷锟絕锟教★拷

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