busd化學成分： 酸洗板,熱軋板卷,冷軋帶鋼,冷軋卷 spcct-sd,spcc,spce,dc01,dc03,dc04,dc05,dc06,sae1045,spce,dd11,dd12, dd13,b340la,b410la,b500la,q195a-q235a,q195af-q235af,q295a(b)-q345a(b), blc,bld,busd,bufd,bsufd,st12,st13,st14,st15,st14-t,spcc,spcd,spce,s600mc, saph440,qste500tm,jsc270c,jsc270d,jsc270e, jsc270f,jsc270dg,jsc270h,jsc340w,jsc340h,jsc340p,jsc370w,jsc370p, jsc390w,jsc390p,jsc440w,jsc440p,jsc590r,jsc590y,jsc780y,jsc980y, jsc1180y,jsh270c,jsh270d,jsh270e,jsh310w,jsh370w,jsh400w,jsh440w, jsh440r,jsh440b,saph440bh,jsh490w,jsh490r,jsh490b酸洗板 jsh540w,jsh540r,jsh540y,jsh540b,jsh590w,jsh590r,jsh590y, jsh780w,jsh780r,jsh780y,zste340,zste380　,zste420,zste460,qste260tm,qste300tm,qste340tm,qste360tm, qste380tm,qste420tm,qste460tm,qste500tm,qste550tm,qste600tm, qste650tm,qste690tm,hr270f,hr315f,hr355f,hr380f,hr420f,hr460f, spcd,spce,s600mc,saph440,qste500tm,dc54d+z,dc51d+z,dc52d+z, h260lad+z,h260bd+z,dx53d+z,secc,secd,sece,cr1,cr5.dc04+ze,dc05+ze, dc06+ze,h260pd+z,h180yd+z,h220pd+z,dc53d,st01,sghc,sgcc,sto2z,sto3z,st07z,st01z,dx51d,seccn5,spcct-sd,