<span id="rrr4f"><optgroup id="rrr4f"><center id="rrr4f"></center></optgroup></span>

      1. 全國(guó)服務(wù)咨詢熱線:

        13910962635

        當(dāng)前位置:首頁(yè)  >  產(chǎn)品中心  >  液壓機(jī)械與元件  >  液壓接頭  >  BST-3ParkerST系列快速接頭BST-3

        ParkerST系列快速接頭BST-3

        簡(jiǎn)要描述:產(chǎn)品型號(hào):BST-3 品牌:Parker 所在地:北京 更新日期:2023-05-31

        • 產(chǎn)品型號(hào):BST-3
        • 廠商性質(zhì):代理商
        • 更新時(shí)間:2025-09-08
        • 訪  問(wèn)  量:539

        詳細(xì)介紹

        ParkerST系列快速接頭BST-3

         品牌:Parker  型號(hào):BST-3  加工定制:否  
         安裝形式:快換接口  種類:直通  材質(zhì):黃銅  
         接管口徑:9.5mm  適用范圍:工程機(jī)械 液壓工具  產(chǎn)品別名:快速接頭  
         耐溫:-40°C 至 +110°C ℃ 耐壓:18.5 MPa 螺紋形式:NPTF  

        Parker - ST SERIES QUICK COUPLINGS_Parker 快換接頭和附件  BST-3

        Parker快速接頭parker ST SERIES大流量快速接頭

         

        自1929年起,派克就已經(jīng)開(kāi)始給客戶提供可靠的流體傳動(dòng)技術(shù)服務(wù)。我們的許多*知識(shí)來(lái)自派克精密制造的工業(yè)和通用接頭。派克擁有80多年的產(chǎn)品設(shè)計(jì)、工程、應(yīng)用技術(shù)和制造方面經(jīng)驗(yàn),是管接頭行業(yè)的,為的各種應(yīng)用提供管接頭。

         

        自1929年起,派克就已經(jīng)開(kāi)始給客戶提供可靠的流體傳動(dòng)技術(shù)服務(wù)。我們的許多*知識(shí)來(lái)自派克精密制造的工業(yè)和通用接頭。派克擁有80多年的產(chǎn)品設(shè)計(jì)、工程、應(yīng)用技術(shù)和制造方面經(jīng)驗(yàn),是管接頭行業(yè)的,為的各種應(yīng)用提供管接頭。 Hydraulic Quick Couplings FEM Series Flush-faced Quick Couplings。

        Parker快速接頭,Parker FEM SERIES無(wú)溢流型快速接頭,派克快速接頭的設(shè)計(jì)ISO 16028標(biāo)準(zhǔn)的設(shè)計(jì)及壓力要求。FEM標(biāo)準(zhǔn)件設(shè)計(jì)還可方便于選擇各種陽(yáng)接頭,派克FEM接頭設(shè)計(jì)用于建筑,公用設(shè)施及農(nóng)業(yè)設(shè)備。如所有派克平齊端面設(shè)計(jì)一樣,這種無(wú)溢流型快速接頭的特征在于它削除了連接或斷開(kāi)液壓附件時(shí)出現(xiàn)的液壓泄漏和夾氣。FEM系列可理想地用于許多其他應(yīng)用,這類應(yīng)用的特征是液壓泄漏為一關(guān)注問(wèn)題而且與其他制造廠家產(chǎn)品的普遍互換比較重要。陽(yáng)接頭:碳鋼;表面處理:表面鍍白鋅;閥:平齊端面閥機(jī)構(gòu);密封件:抗爆裂丁晴橡膠

         

        Technical Description
        Non-valved couplings.
        Maximal flow. Minimal pressure
        drop. Easy cleaning.
        This series is also manufactured
        as an alternative in steel and
        AISI 316 material.
        Advantages
        No valving allows minimal pressure
        drop, maximal flow and
        easy cleaning. The ball locking
        mechanism with high number
        of balls to distributes the work
        load assures low wearing
        and good alignement
        of the
        couplings. High resistance to
        brinneling due to heat treated
        nipples.

         

         

        Working Temperature:-40°C up to +110°C (NBR)
        depending on the medium.
        Special seals are available

        Working Pressure
        Body Size Brass Stainless Steel
        1/8" 175 bar 290 bar
        1/4" 360 bar 460 bar
        3/8" 185 bar 380 bar
        1/2" 150 bar 210 bar
        3/4" 120 bar 210 bar
        1" 80 bar 120 bar
        1 1/4" 120 bar
        1 1/2" 95 bar

        Material Coupling Brass Stainless Steel
        Coupling Body Brass AISI 303
        Sleeve Brass AISI 303
        Back-up Ring AISI 303 AISI 303
        Valve AISI 303 AISI 303
        Seals NBR NBR
        Locking Balls Brass AISI 303
        Material Plug Brass Stainless Steel
        Plug Body Brass AISI 303

         

        parker快速接頭,parker ST SERIES大流量快速接頭,派克快速接頭
        BST-1 BSPP, BST-2 BSPP, BST-3 BSPP, BST-4 BSPP, BST-6 BSPP, BST-8 BSPP, BST-10 BSPP,
        BST-12 BSPP, BST-N1 BSPP, BST-N2 BSPP, BST-N3 BSPP, BST-N4 BSPP, BST-N6 BSPP, BST-N8 BSPP, BST-N10 BSPP,BST-N12 BSPP,BST-1M BSPP, BST-2M BSPP, BST-3M BSPP, BST-4M BSPP, BST-6M BSPP,
        BST-8M BSPP, BST-N1M BSPP, BST-N2M BSPP, BST-N3M BSPP, BST-N4M BSPP, BST-N6M BSPP,BST-N8M BSPP,
        BST-1, BST-2, BST-3, BST-4, BST-6, BST-8, BST-10, BST-12,SST-1, SST-2, SST-3,
        SST-4, SST-6, SST-8, BST-1M, BST-2M, BST-3M, BST-4M, BST-6M, BST-8M, SST-1M, 
        SST-2M, SST-3M,SST-4M, SST-6M, SST-8M,BST-N1, BST-N2, BST-N3, BST-N4, BST-N6,
        BST-N8, BST-N10, BST-N12, SST-N1, SST-N2, SST-N3, SST-N4, SST-6,SST-N8, BST-N1M, BST-N2M, BST-N3M, BST-N4M, BST-N6M,BST-N8M, BST-N10M, BST-N12M, SST-N1M, SST-N2M, SST-N3M, SST-N4M, SST-N6M,SST-N8M,HO-251-4FP, HO-252-4FP, HO-371-6FP, HO-372-6FP, HO-501-8FP, HO-502-8FP,1163-60, 1163-61,WB-501-8FP,WB-502-8FP

        ST-Series Brass
        1/8" 1/8"- 27 NPTF 9/16" 25,4 17,5 4,4 Brass 29 BST-1
        1/4" 1/4" BSPP 13/16" 39,1 23,8 6,4 Brass 85 BST-2-BSPP
        1/4" 1/4" - 18 NPTF 13/16" 37,3 23,8 6,4 Brass 83 BST-2
        3/8" 3/8" BSPP 1" 41,7 29,0 9,5 Brass 122 BST-3-BSPP
        3/8" 3/8" - 18 NPTF 1" 41,8 29,0 9,5 Brass 130 BST-3
        1/2" 1/2" BSPP 1 1/8" 50,3 33,3 11,9 Brass 186 BST-4-BSPP
        1/2" 1/2"-14 NPTF 1 1/8" 48,5 33,3 11,9 Brass 189 BST-4
        3/4" 3/4" BSPP 1 7/16" 54,6 41,7 18,3 Brass 294 BST-6-BSPP
        3/4" 3/4" - 14 NPTF 1 7/16" 52,1 41,7 18,3 Brass 316 BST-6
        1" 1" BSPP 1 3/4" 61,7 50,8 23,8 Brass 467 BST-8-BSPP
        1" 1" - 11 1/2 NPTF 1 3/4" 58,7 50,8 23,8 Brass 477 BST-8
        1 1/4" 1 1/4" -11 1/2 NPTF 2" 62,0 64,0 30,2 Brass 720 BST-10
        1 1/2" 1 1/4"-11 1/2 NPTF 2 1/2" 72,9 76,2 38,1 Brass 1176 BST-12
        Male Thread
        1/8" 1/8" - 27 NPTF 9/16" 26,9 9,5 17,5 4,4 Brass 24 BST-1M
        1/4" 1/4" - 18 NPTF 13/16" 42,9 13,5 23,8 6,4 Brass 92 BST-2M
        3/8" 3/8" - 18 NPTF 1" 44,5 14,5 29,0 9,5 Brass 108 BST-3M
        1/2" 1/2" - 14 NPTF 1 1/8" 50,5 19,1 33,3 11,9 Brass 152 BST-4M
        3/4" 3/4" - 14 NPTF 1 7/16" 55,1 13,9 41,7 18,3 Brass 227 BST-6M
        1" 1" - 11 1/2 NPTF 1 3/4" 64,3 25,4 50,8 23,8 Brass 402 BST-8M
        Plugs ST-Series Brass

        Part Number Female Thread
        1/8" 1/8" - 27 NPTF 9/16" 24,6 14,3 16,4 4,4 Brass 15 BST-N1
        1/4" 1/4" BSPP 3/4" 37,1 18,1 21,9 6,4 Brass 40 BST-N2-BSPP
        1/4" 1/4" - 18 NPTF 3/4" 37,1 18,1 21,9 6,4 Brass 48 BST-N2
        3/8" 3/8" BSPP 7/8" 41,9 19,1 25,6 9,5 Brass 57 BST-N3-BSPP
        3/8" 3/8" - 18 NPTF 7/8" 41,3 19,1 25,6 9,5 Brass 58 BST-N3
        1/2" 1/2" BSPP 1 1/8" 48,5 24,7 32,9 11,9 Brass 110 BST-N4-BSPP
        1/2" 1/2" - 14 NPTF 1 1/8" 48,5 24,7 32,9 11,9 Brass 114 BST-N4
        3/4" 3/4" BSPP 1 3/8" 54,5 26,5 40,2 18,3 Brass 172 BST-N6-BSPP
        3/4" 3/4" - 14 NPTF 1 3/8" 54,5 26,5 40,2 18,3 Brass 175 BST-N6
        1" 1" BSPP 1 5/8" 59,6 29,0 47,5 23,8 Brass 271 BST-N8-BSPP
        1" 1" - 11 1/2 NPTF 1 5/8" 59,6 29,0 47,5 23,8 Brass 240 BST-N8
        1 1/4" 1 1/4" -11 1/2 NPTF 2" 60,3 29,2 58,4 30,2 Brass 482 BST-N10
        1 1/2" 1 1/4" -11 1/2 NPTF 2 3/8" 71,3 29,7 69,5 38,1 Brass 688 BST-N12
        Part Number Male Thread
        1/8" 1/8"-27 NPTF 7/16" 26,3 15,9 9,5 12,8 4,4 Brass 11 BST-N1M
        1/4" 1/4"-18 NPTF 9/16" 38,8 19,8 13,5 16,4 6,4 Brass 27 BST-N2M
        1/4" 1/4" BSPT 9/16" 38,8 19,8 8,4 16,4 6,4 Brass 31 BST-N2M-BSPT
        3/8" 3/8"-18 NPTF 11/16" 42,9 20,7 14,5 20,1 9,5 Brass 40 BST-N3M
        3/8" 3/8" BSPT 11/16" 42,9 20,7 8,7 20,1 9,5 Brass 39 BST-N3M-BSPT
        1/2" 1/2"-14 NPTF 7/8" 49,2 25,4 19,1 25,6 11,9 Brass 68 BST-N4M
        1/2" 1/2" BSPT 7/8" 49,2 25,4 11,3 25,6 11,9 Brass 67 BST-N4M-BSPT
        3/4" 3/4"-14 NPTF 1 1/16" 55,7 27,8 13,9 31,0 18,3 Brass 107 BST-N6M
        3/4" 3/4" BSPT 1 1/16" 55,7 27,8 12,7 31,0 18,3 Brass 107 BST-N6M-BSPT
        1" 1"-11 1/2 NPTF 1 3/8" 63,7 33,1 25,4 40,2 23,8 Brass 208 BST-N8M
        1" 1" BSPT 1 3/8" 63,7 33,1 14,4 40,2 23,8 Brass 238 BST-N8M-BSPT
        Couplings ST-Series Stainless Steel
        1/8" 1/8"-27 NPTF 9/16" 25,4 17,5 4,4 AISI 303 23 SST-1
        1/4" 1/4" BSPP 13/16" 39,1 23,8 6,4 AISI 303 74 SST-2-BSPP
        1/4" 1/4"-18 NPTF 13/16" 37,3 23,8 6,4 AISI 303 75 SST-2
        3/8" 3/8" BSPP 1" 41,7 29,0 9,5 AISI 303 115 SST-3-BSPP
        3/8" 3/8"-18 NPTF 1" 40,4 29,0 9,5 AISI 303 117 SST-3
        1/2" 1/2" BSPP 1 1/8" 50,3 33,3 11,9 AISI 303 172 SST-4-BSPP
        1/2" 1/2"-14 NPTF 1 1/8" 48,5 33,3 11,9 AISI 303 174 SST-4
        3/4" 3/4" BSPP 1 7/16" 54,6 41,7 18,3 AISI 303 268 SST-6-BSPP
        3/4" 3/4"-14 NPTF 1 7/16" 52,1 41,7 18,3 AISI 303 304 SST-6
        1" 1"-11 1/2 NPTF 1 3/4" 58,7 50,8 23,8 AISI 303 519 SST-8
        Male Thread
        1/8" 1/8"-27 NPTF 9/16" 26,9 9,5 17,5 4,4 AISI 303 22 SST-1M
        1/4" 1/4"-18 NPTF 13/16" 42,9 13,5 23,8 6,4 AISI 303 71 SST-2M
        3/8" 3/8"-18 NPTF 1" 44,5 14,5 29,0 9,5 AISI 303 100 SST-3M
        1/2" 1/2"-14 NPTF 1 1/8" 50,5 19,1 33,3 11,9 AISI 303 149 SST-4M
        3/4" 3/4"-14 NPTF 1 7/16" 55,1 13,9 41,7 18,3 AISI 303 211 SST-6M
        1" 1"-11 1/2 NPTF 1 3/4" 64,3 25,4 50,8 23,8 AISI 303 385 SST-8M
        1/8" 1/8"-27 NPTF 9/16" 24,8 14,3 16,4 4,4 AISI 303 17 SST-N1
        1/4" 1/4" BSPP 3/4" 37,1 18,1 21,9 6,4 AISI 303 36 SST-N2-BSPP
        1/4" 1/4"-18 NPTF 3/4" 37,1 18,1 21,9 6,4 AISI 303 36 SST-N2
        3/8" 3/8" BSPP 7/8" 41,3 19,1 25,6 9,5 AISI 303 53 SST-N3-BSPP
        3/8" 3/8"-18 NPTF 7/8" 41,3 19,1 25,6 9,5 AISI 303 50 SST-N3
        1/2" 1/2" BSPP 1 1/8" 48,5 24,7 32,9 11,9 AISI 303 103 SST-N4-BSPP
        1/2" 1/2"-14 NPTF 1 1/8" 48,5 24,7 32,7 11,9 AISI 303 105 SST-N4
        3/4" 3/4" BSPP 1 3/8" 54,5 26,5 40,2 18,3 AISI 303 156 SST-N6-BSPP
        3/4" 3/4"-14 NPTF 1 3/8" 54,5 26,5 40,2 18,3 AISI 303 169 SST-N6
        1" 1"-11 1/2 NPTF 1 5/8" 59,6 29,0 47,5 23,8 AISI 303 272 SST-N8
        Male Thread
        1/8" 1/8"-27 NPTF 7/16" 26,3 15,9 9,5 12,8 4,4 AISI 303 10 SST-N1M
        1/4" 1/4"-18 NPTF 9/16" 38,8 19,8 13,5 16,4 6,4 AISI 303 24 SST-N2M
        3/8" 3/8"-18 NPTF 11/16" 42,9 20,7 14,5 20,1 9,5 AISI 303 41 SST-N3M
        1/2" 1/2"-14 NPTF 7/8" 49,2 25,4 19,1 25,6 11,9 AISI 303 64 SST-N4M
        3/4" 3/4"-14 NPTF 1 1/16" 55,7 27,8 13,9 31,0 18,3 AISI 303 100 SST-N6M
        1" 1"-11 1/2 NPTF 1 3/8" 63,7 33,1 25,4 40,2 23,8 AISI 303 198 SST-N8M

         

        1/8 BST-1 0.06 SST-1 0.05 1/8-27 1.06 0.56 0.69 
        1/4 BST-2 0.17 SST-2 0.15 1/4-18 1.54 0.81 0.94 
        3/8 BST-3 0.26 SST-3 0.24 3/8-18 1.59 1.00 1.16 
        1/2 BST-4 0.59 SST-4 0.37 1/2-14 1.98 1.13 1.30 
        3/4 BST-6 0.62 SST-6 0.57 3/4-14 2.15 1.44 1.66 
        1 BST-8 0.99 SST-8 0.93 1-11 1/2 2.43 1.75 2.02 
        1-1/4 BST-10 1.38 – – 1 1/4-11 1/2 2.44 2.00 2.51 
        1-1/2 BST-12 1.42 – – 1 1/2-11 1/2 2.88 2.50 3.00

        Male Pipe Thread

        Body Part No. Part No. Thread Dimensions (in.) 
        Size Wt. (LB.) Type 303 Wt. (LB.) Size Overall Wrench Largest 
        (in.) Brass P/Piece Stainless P/Piece NPTF Length Flats Diameter 
        A B C 
        1/8 BST-1M 0.05 SST-1M 0.05 1/8-27 1.06 0.56 0.69 
        1/4 BST-2M 0.16 SST-2M 0.16 1/4-18 1.69 0.81 0.81 
        3/8 BST-3M 0.25 SST-3M 0.21 3/8-18 1.75 1.00 1.16 
        1/2 BST-4M 0.34 SST-4M 0.31 1/2-14 1.94 1.13 1.30 
        3/4 BST-6M – SST-6M 0.49 3/4-14 2.17 1.44 1.66 
        1 BST-8M 0.85 SST-8M 0.08 1-11 1/2 2.53 1.75 2.02 
        1/8 BST-N1 0.03 ST-N1 0.03 SST-N1 0.02 1/8-27 .98 0.57 0.56 0.65 
        1/4 BST-N2 0.07 ST-N2 0.07 SST-N2 0.07 1/4-18 1.46 0.74 0.75 0.87 
        3/8 BST-N3 0.12 ST-N3 0.11 SST-N3 0.11 3/8-18 1.62 0.96 .088 1.59 
        1/2 BST-N4 0.23 ST-N4 0.21 SST-N4 0.21 1/2-14 1.85 0.95 1.13 1.30 
        3/4 BST-N6 0.33 ST-N6 0.32 SST-N6 0.32 3/4-14 2.15 1.09 1.38 1.59 
        1 BST-N8 0.52 ST-N8 0.49 SST-N8 0.48 1-11 1/2 2.35 1.18 1.63 1.88 
        1 1/4 BST-N10 0.85 – – – – 1 1/4-11 1/2 2.38 1.11 2.00 2.31 
        1 1/2 BST-N12 1.45 – – – – 1 1/2-11 1/2 2.81 1.17 2.38 2.74

        Nipples Male Pipe Thread 
        1/8 BST-N1M 0.02 ST-N1M 0.02 SST-N1M 0.02 1/8-27 1.04 0.63 0.44 0.51 
        1/4 BST-N2M 0.06 ST-N2M 0.05 SST-N2M 0.05 1/4-18 1.53 0.81 0.56 0.65 
        3/8 BST-N3M 0.08 ST-N3M 0.07 SST-N3M 0.08 3/8-18 1.69 0.86 0.69 0.79 
        1/2 BST-N4M 0.15 ST-N4M 0.13 SST-N4M 0.13 1/2-14 1.94 1.01 0.88 1.01 
        3/4 BST-N6M 0.23 ST-N6M 0.21 SST-N6M 0.22 3/4-14 2.19 1.11 1.06 1.23 
        1 BST-N8M 0.46 ST-N8M 0.43 SST-N8M 0.43 1-11 1/2 2.51 1.34 1.38 1.59 
        1 1/4 BST-N10M 0.96 – – – – 1 1/4-11 1/2 2.85 1.60 1.88 2.17 
        1 1/2 BST-N12M 1.46 – – – – 1 1/2-11 1/2 3.25 1.59 2.13 2.45

        Replacement Parts ST Series 
        ST Series O-Rings 1/8 Body Size (in.) 1/4 3/8 1/2 
        Standard Nitrile* 50001-010-0010 50001-110-0010 50001-112-0010 50001-114-0010

        ST Series O-Rings 3/4 Body Size (in.) 1 1-1/4 1-1/2 
        Standard Nitrile* 50001-212-0010 50001-217-0010 50001-221-0010 50001-327-0010

         

        Body Part Dimensions (in.)
        Size No. Thread Overall Hex Largest Wt. (LB.)
        (in.) Steel Size Length Size Diameter P/Piece
        A B C
        1/4 SM-251-4FP 1/4-18 NPTF 1.89 0.75 1.06 0.24
        1/4 SM-251-4FB G1/4 BSPP 2.04 0.75 1.06 0.26
        1/4 SM-251-6FP 3/8-18 NPTF 2.04 0.94 1.06 0.28
        1/4 SM-251-6FB G3/8 BSPP 2.04 0.94 1.06 0.26
        1/4 SM-251-6FO 9/16-18ORB 2.04 0.75 1.06 0.25
        1/2 SM-501-8FP 1/2-14 NPTF 2.81 1.25 1.56 0.70
        1/2 SM-501-8FB G1/2 BSPP 2.95 1.25 1.56 0.74
        1/2 SM-501-12FP 3/4-14 NPTF 2.99 1.37 1.56 0.81
        1/2 SM-501-12FB G3/4 BSPP 3.16 1.37 1.56 0.85
        1/2 SM-501-8FO 3/4-16ORB 2.95 1.25 1.56 0.70
        3/4 SM-751-12FO 1 1/16-12ORB 3.62 1.62 2.25 1.78
        3/4 SM-751-12FP 3/4-14 NPTF 3.62 1.62 2.22 1.83
        3/4 SM-751-12FB G3/4 BSPP 3.76 1.62 2.22 1.88
        3/4 SM-751-16FP 1-11 1/2 NPTF 3.90 1.62 2.22 1.84
        3/4 SM-751-16FB G 1 BSPP 3.90 1.62 2.22 1.89
        3/4 SM-751-16FO 1-5/16-12ORB 3.90 1.62 2.22 1.89

        Body Part Dimensions (in.)
        Size No. Thread Overall Exposed* Hex Largest Wt. (LB.)
        (in.) Steel Size Length Length Size Diameter P/Piece
        D E F G
        1/4 SM-252-4FP 1/4-18 NPTF 1.29 0.50 0.75 0.87 0.08
        1/4 SM-252-4FB G1/4 BSPP 1.44 0.65 0.75 0.87 0.09
        1/4 SM-252-6FP 3/8-18 NPTF 1.60 0.81 0.94 1.08 0.14
        1/4 SM-252-6FB G3/8 BSPP 1.60 0.81 0.94 1.08 0.14
        1/4 SM-252-6FO 9/16-18ORB 1.44 0.55 0.75 0.87 0.08
        1/2 SM-502-8FO 3/4-16ORB 2.27 0.72 1.06 1.23 0.16
        1/2 SM-502-8FP 1/2-14 NPTF 1.81 0.45 1.06 1.23 0.15
        1/2 SM-502-8FB G1/2 BSPP 1.96 0.60 1.06 1.23 0.18
        1/2 SM-502-12FP 3/4-14 NPTF 2.27 0.90 1.37 1.59 0.30
        1/2 SM-502-12FB G3/4 BSPP 2.44 1.07 1.37 1.59 0.34
        3/4 SM-752-12FO 1 1/16-12ORB 2.33 0.39 1.50 1.73 0.48
        3/4 SM-752-12FP 3/4-14 NPTF 2.33 0.39 1.50 1.73 0.52
        3/4 SM-752-12FB G3/4 BSPP 2.79 0.53 1.50 1.73 0.56
        3/4 SM-752-16FP 1-11 1/2 NPTF 2.61 0.67 1.62 1.88 0.56
        3/4 SM-752-16FB G 1 BSPP 2.61 0.67 1.62 1.88 0.68
        3/4 SM-752-16FO 1-5/16-12ORB 2.61 0.67 1.62 1.88 0.68

        產(chǎn)品咨詢

        留言框

        • 產(chǎn)品:

        • 您的單位:

        • 您的姓名:

        • 聯(lián)系電話:

        • 常用郵箱:

        • 省份:

        • 詳細(xì)地址:

        • 補(bǔ)充說(shuō)明:

        • 驗(yàn)證碼:

          請(qǐng)輸入計(jì)算結(jié)果(填寫阿拉伯?dāng)?shù)字),如:三加四=7

        全國(guó)統(tǒng)一服務(wù)電話

        13910962635

        電子郵箱:sales@cnmec.biz

        公司地址:北京朝陽(yáng)區(qū)望京SOHO-T1-C座2115室

        業(yè)務(wù)咨詢微信

        久草视频在线网| v11av18| 少妇高潮惨叫喷水在线观看| 久久久午夜精品福利内容| 拔播拔播华人永久免费| 久久99国产这里有精品视| 欧美一区2区三区4区公司贰佰| 亚洲欧美色鬼久久综合| 欧美大bbbxxx视频| 亚洲国产av美女网站| 欧美日韩精彩视频| 亚洲日韩精品国产一区二区三区| 欧产日产国产精品| 亚洲第一页在线观看| 欧美亚洲国产一区二区三区| 亚洲人成精品久久久久| 日韩亚洲欧美综合| 久久亚洲精品无码VA大香大香| 成人在线第一页| 中文天堂在线www| 成人动漫在线播放| 一级午夜免费视频| 国内精品福利在线视频| 91香蕉国产线在线观看免费| 国产浮力第一影院| 色综久久天天综合绕视看| 国产xxxx做受视频| 男女啪啪高清无遮挡免费| 十七岁免费观看高清| 经典国产一级毛片| 午夜影院在线视频| 毛片a级三毛片免费播放| 亚洲最大在线观看| 日美韩电影免费看| 久久99国产乱子伦精品免费 | 日韩欧美卡一卡二卡新区| 久久国产加勒比精品无码| 无码国产成人av在线播放| 两个美女脱了内裤互摸网沾| 国内精品在线播放| 黄色网页免费观看|