我与乡下少妇的性事_色琪琪综合男人的天堂aⅴ视频_大胸喂奶秘书3p高h_国产一区二区视频在线播放_国产老头gay和老头gay视频_中文字幕亚洲欧美_国产男人搡女人免费视频_伊人色综合久久天天五月婷_崔雪莉被金秀贤握胸动态图_毛片在线视频观看

首頁 > JB機(jī)械行業(yè)標(biāo)準(zhǔn)免費(fèi)下載
  • JB/T 9637-2022 汽輪機(jī) 總裝技術(shù)規(guī)范2023-10-11
  • JB/T 14313-2022 核電廠用穩(wěn)壓器比例噴霧閥 技術(shù)規(guī)范2023-10-11
  • JB/T 14307-2022 磁控開關(guān)閥2023-10-11
  • JB/T 13894-2020 半閉式快速壓力機(jī) 精度 Middle speed semi-straight side press-Testing of accuracy2023-10-09
  • JB/T 20164-2014 藥丸整形拋光機(jī) Pills shaping and polishing machine2023-10-09
  • JB/T 13934.3-2020 數(shù)控木工五面多軸鉆床 第3部分:技術(shù)條件 Numerically controlled (NC) five-side and multiple sp...2023-10-08
  • JB/T 8856-2018 溶解乙炔設(shè)備 Dissolved acetylene systems2023-10-08
  • JB/T 12638-2016 定中心杠桿指示表 Centering dial indicator2023-10-08
  • JB/T 7910-2018 拉絲機(jī) Drawing machine2023-10-08
  • JB/T 20181-2017 中藥大蜜丸扣殼機(jī) Large pill capping machine of chinese medicine2023-10-08
  • JB/T 10231.6-2016 刀具產(chǎn)品檢測方法 第6部分:插齒刀 Tool inspection methods—Part 6: Shaper cutter...2023-10-08
  • JB/T 12546-2015 超硬磨料制品金剛石滾筒 Superabrasive products--Diamond roller2023-10-08
  • JB/T 13750-2020 調(diào)容分接開關(guān) Capacity regulating tap-changers2023-10-08
  • JB/T 11672.2-2013 拖拉機(jī)分置式液壓懸掛系分配器 第2部分:試驗(yàn)方法 Separated tractors' hydraulic hitch syst...2023-10-08
  • JB/T 3848-2020 閉式多工位壓力機(jī) 精度 Straight-side transfer press-Testing of the accuracy2023-10-08
  • JB/T 12620-2016 水輪機(jī)進(jìn)水液動球閥技術(shù)條件 Specification for hydraulic operation ball valves of hydraulic tu...2023-10-07
  • JB/T 13227-2017 固體材料原位彎曲-扭轉(zhuǎn)復(fù)合力學(xué)性能測試系統(tǒng) In-situ testing systems of bend-torsional combined...2023-10-07
  • JB/T 12894-2016 內(nèi)燃機(jī) 氣缸套變形及磨損測量規(guī)范 Internal combustion engine-Cylinder liner deformation and we...2023-10-07
  • JB/T 13096.1-2017 數(shù)控圓鋸床 第1部分:型式與參數(shù) Numerical control circular sawing machine-Part 1: Types and p...2023-10-07
  • JB/T 12902-2016 土方機(jī)械 溫度表 Earth-moving machinery-Temperature meter2023-10-07
  • JB/T 10465-2016 稀油潤滑裝置  技術(shù)條件 Lube oil console—Technical specification2023-10-07
  • JB/T 13775-2020 工業(yè)機(jī)械電氣設(shè)備及系統(tǒng) 數(shù)控系統(tǒng)軟件白盒測試規(guī)范 Electrical equipment and system of industria...2023-10-06
  • JB/T 13865-2020 三輪汽車 車廂可卸式垃圾車 Tri-wheel vehicles—Detachable container garbage collector...2023-10-06
  • JB/T 10231.14-2017 刀具產(chǎn)品檢測方法 第14部分:鍵槽銑刀 Tool inspection methods-Part 14: Slotting drills...2023-10-06