HRB400 rebar/gb SAE1008 added boron containing boron export tax rebates set screw, our company supply exit boron drawback gb gb thread 10 to 25 mm, 6-12 mm wire rod plate yuan, adding boron thread, negative difference size thread in order to receive, quantity can be preferential! To add boron rebar, secondary and tertiary level 4, seismic rebar (HRB335, HRB400 boron rebar, HRB500 rebar)
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