天津宁信供应
名称                                                     规格                                                                     
SA-213T2内螺纹锅炉管          38.1*7.5           (ASME)
SA-210C内螺纹锅炉管            51*5.7    60*6.5
SA-210A1内螺纹锅炉管 44.5*5.5 50.8*5.8 50.8*6.5 51*5.6 (GB20409
20G内螺纹锅炉管                    63.5*8
15CrMoG内螺纹锅炉管           26.8*5.8
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