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電動(dòng)焊接截止閥 鍛鋼對(duì)焊截止閥 防爆電動(dòng)截止閥 法蘭鑄鋼截止閥 耐高溫截止閥 J41H法蘭截止閥 NKJ61H真空截止閥 YJ41W不銹鋼氧氣截止閥 BJ41H保溫式截止閥 BJ41W不銹鋼保溫截止閥 J61Y鍛鋼截止閥 J44F46襯氟角式截止閥 J41F46襯氟截止閥 WJ41H德標(biāo)波紋管截止閥 J44H角式截止閥 FJ41H節(jié)流截止放空閥 DJ41H,HDJ41Y低溫截止閥, J41H,J41W美標(biāo)截止閥 J615W內(nèi)螺紋氣動(dòng)角座閥 J941H電動(dòng)截止閥 YJ41W黃銅氧氣截止閥 J41W不銹鋼截止閥 WJ41H波紋管截止閥 J41W-320Ti高壓鈦截止閥 J41H-16C大口徑截止閥 J41H、J41Y、J41W國(guó)標(biāo)截止閥 J11W內(nèi)螺紋針型截止閥 JY41W不銹鋼氧氣截止閥 DSJ61H焊接式水封截止閥 DSJ41H法蘭式水封截止閥 J41F46法蘭襯氟截止閥 J41F46襯氟直流式截止閥 JLH三合一多功能止回閥 J41X-10S塑料截止閥 J11F黃銅內(nèi)螺紋截止閥 J11W美式不銹鋼內(nèi)螺紋截止閥 J641H氣動(dòng)法蘭截止閥 J941H電動(dòng)法蘭截止閥 J24B外螺紋角式氨用截止閥 J41Y法蘭自密封截止閥 J11W不銹鋼內(nèi)螺紋截止閥 J11W蘇式內(nèi)螺紋截止閥 J65Y直流式對(duì)焊截止閥 J61Y高溫高壓焊接截止閥 J44H法蘭角式截止閥 J41J直通式襯膠截止閥 J45J襯膠直流式截止閥 J21B外螺紋氨用截止閥 J11B內(nèi)螺紋氨用截止閥 J44B角式氨用截止閥 J41B氨用截止閥 J41H美標(biāo)法蘭截止閥 J41H日標(biāo)法蘭截止閥 J41H德標(biāo)法蘭截止閥 J41W不銹鋼法蘭截止閥 BJ45H直流式保溫截止閥 BJ41H直通式保溫截止閥 水封截止閥 J41H-100高壓截止閥 保溫夾套直流式截止閥 J41Y/H-40截止閥 J45J直流式襯膠截止閥 J941Fs電動(dòng)襯氟截止閥 J45Fs直流式襯氟截止閥 FJ41Y節(jié)流截止放空閥 QF-T3天然氣截止閥 LJ86Y平衡式卡箍截止閥 J41H法蘭式截止閥 BJ45W直流式保溫截止閥 DJ61F低溫長(zhǎng)軸截止閥 J44Y高壓角式截止閥 NKJ41H法蘭真空隔離截止閥 J14B內(nèi)螺紋角式氨用截止閥 J45H直流式截止閥 J11W絲扣截止閥 J15Y/J65Y內(nèi)螺紋與承插焊Y型截止閥 J65Y自密封Y型截止閥 J61Y/J961Y/J561Y高溫高壓電站截止閥 DJ41Y法蘭低溫截止閥 J41H/J41W美標(biāo)法蘭截止閥 J641Fs氣動(dòng)襯氟截止閥 J41Fs襯氟截止閥 J42B法蘭角式氨用截止閥 J961H/J961Y高溫高壓電動(dòng)截止閥 BJ45W不銹鋼保溫截止閥 J41B法蘭氨用截止閥 NKJ61H焊接真空隔離截止閥 J41W法蘭式不銹鋼截止閥 BJ41W保溫截止閥 J41J襯膠截止閥 FDJ41H防盜截止閥 JY41W氧氣專(zhuān)用截止閥 J44F46襯氟截止閥角式 DWJ41H暗桿式德標(biāo)波紋管截止閥 WJ41H WJ41Y WJ61H WJ61Y鍛鋼波紋管截止閥 J41N燃?xì)饨刂归y 燃?xì)馊帐浇刂归y 800lb-1500lb鍛鋼低溫截止閥 800lb鍛鋼Ｙ型截止閥 J41W-16P-160P不銹鋼截止閥 J41H重型截止閥 J41W鑄鋼美標(biāo)截止閥 J41B-25C暗桿氨用截止閥 JY41W-40T全銅氧氣專(zhuān)用截止閥 J41H-100C電動(dòng)高壓截止閥