简易焊接头 ND12

CIHANJIETOUZAIZHONGBOBANGAOFANCAILIAOHANJIEYINGYONGFANGMIANYOUHENQIANGYOUSHI，SHIYIKUAN JINGJIGAOXIAODEHANJIETOU。 HANJIETOUNEIBUJIEGOUWANQUANMIFENG，KEYIBIMIANGUANGXUEBUFENSHOUDAOHUICHENWURAN。 PEIYOUQILIANBUJIAN，JIANSHAOHANJIEYANCHENHEFEIJIANCANZHADUIJINGPIANDEWURAN。 DIAOJIAOCAIYONGTULUNJIEGOU，DIAOJIEJINGQUEFANGBIAN。 BAOHUJINGPIANCAIYONGCHOUTISHIJIEGOU，GENGHUANFANGBIAN。