WWW国产精品内射老熟女,亚洲无码成人综合网,AV美女主播高潮,无码图片二区

CHT91K2氣保藥芯焊絲耐磨堆焊用氣保護(hù)藥芯焊絲  AT-YD172    YF2A-C-350  耐磨堆焊用  
AT-YD182    YF3B-C-450  
七、不銹鋼用氣保護(hù)藥芯焊絲  AT-Y308  E308T1-1  E308T-1  YF308-C  18%-8%Ni不銹鋼焊接用  
AT-Y308L  E308LT1-1  E308LT-1  YF308L-C  超低碳18%Cr-8%Ni不銹鋼焊接用  
AT-Y309  E309T1-1  E309T-1  YF309-C  25%Cr-13%Ni不銹鋼焊接用、異種鋼焊接或堆焊過渡層用  
AT-Y309L  E309LT1-1  E309LT-1  YF309L-C  超低碳25%Cr-13%Ni不銹鋼焊接用 、異種鋼焊接或堆焊過渡層用  
AT-Y347  E347T1-1  E347T-1  YF347-C  18%Cr-8%Ni-Nb或18%Cr-8%Ni-Ti不銹鋼焊接用  
AT-Y316  E316T1-1  E316T-1  YF316-C  18%Cr-12%Ni-2%Mo不銹鋼焊接用  
AT-Y316L  E316LT1-1  E316LT-1  YF316L-C  超低碳18%Cr-12%Ni-2%Mo不銹鋼焊接用  
CHT91K2氣保藥芯焊絲CHT91K2氣保藥芯焊絲CHT91K2氣保藥芯焊絲CHT91K2氣保藥芯焊絲