蜜桃臀人妻丰满熟妇av无寂寞少妇色诱高潮内射在线视频|上海老熟女啪啪露脸高潮|粗暴蹂躏人妻av一区二区三区|国产av综合第1页|耻虐人妻|丰满少妇熟妇|日本少妇高潮喷水免费观看|女人扒开屁屁让男人捅|他揉我奶子|狂插少妇喷水,狂插处女,亚洲一区日本av,欧美丰满老熟妇bbbbbb多人

中文版 | English |
Home > News >
  • 26
    2019-09

    Where is the hydraulic reinforced extrusion machine use

    　Hydraulic steel extrusion machine building steel hot forging connection method: in to join two end up building steel seamless steel tube, then using portable four-column hydraulic press, extrusion waterproof casing deformation, the second root reinforcement lap as a body of a sleeve connection mode, this method apply to industrial and civilian building, content, multi-storey building, foundation engineering, etc., all kinds of concrete structure of phi is 20 ~ 40 grade I, ii grade lap joint of steel bars and reducing lap, light round bar connection can join the longitudinal, level, and all slope Angle of building steel, its connection head compressive strength, bending rigidity, ductility symmetry with the original material very much...
  • 25
    2019-09

    KRA - 20 portable hydraulic punching machine have what features

    KRA - 20 portable hydraulic punching machine product features: suitable for steel, iron, copper, aluminum, i-steel, molding just punching operation, such as small volume, light weight, energy saving and quick punch...

  • 25
    2019-09

    RC - 16 a portable bar cutting machine have what effect

    RC - 16 a portable bar cutting machine product features: apply to the construction site bar cutting. This product is light weight, small size, easy to carry. No spark cutting process, no dust, safe and reliable...

  • 25
    2019-09

    How portable hydraulic bending machine maintenance and maintenance

    1,、Hydraulic circuit
    1）Weekly check the tank oil level, such as hydraulic system also should check after repair, oil level is lower than the oil line center should include the hydraulic oil；
    2）New work 2000 hours after the oil should be replaced, should be replaced every work of 4000 ~ 6000 hours after the hydraulic oil, oil change every time, should be cleaning tank...
  • 25
    2019-09

    Safety regulations of reinforced bending machine

    Workbench and bending plate should maintain a level, before operation should check iron core shaft, shaft, gear shaft, variable block crack or damage, shield is firm and reliable, after confirmed by the idle running normal, can work...
  • 15
    2015-07

    Use steel bar bending machine of some matters needing attention

    CNC bending machine is a dedicated to the processing of bar steel machine, can the device within a unit of work with simultaneous bending garment, two bending host work at the same time, greatly improve the efficiency, carry 5 tons of raw materials, artificial labor intensity is greatly reduced...