免费男人下部进女人下部视频,男人扒开添女人下部免费视频,男人的J放进女人P的视频

  • <td id="us4os"><blockquote id="us4os"></blockquote></td>
  • <input id="us4os"><tbody id="us4os"></tbody></input>
  • <small id="us4os"></small>
    <strong id="us4os"><label id="us4os"></label></strong>
  • <small id="us4os"><small id="us4os"></small></small>

    JIS G3454 Carbon steel pipes for pressure service.

    JIS G3454 Carbon Steel Pipes for Pressure Service

    1. Scope

    This Japanese Industrial Standard specifies the carbon steel pipes, hereinafter referred to as the “pipes”, used for pressure service at an approximate maximum temperature of 350℃. The pipes for high pressure service shall be in accordance with JIS G 3455.

    Remarks

    1.Pertaining to the electric-resistance welded steel tubes, when previously agreed upon with the manufacturer, the purchaser may designate the supplementary quality requirements Z 3 or Z 4 specified in Appendix, in addition to the items specified in this text.

    Appendix Z 3 Ultrasonic Examination

    Appendix Z 4 Eddy Current Examination.

    2. The units and numerical values given in { } in this Standard are based on the international System of Units (SI) and are appended for informative reference.

    Further, the traditional units accompanied by numerical values in this Standard shall be converted to the SI units and numerical values on Jan. 1, 1991.

    2. Grade and Designation

    The pipe shall be classified into two grades and their letter symbols shall be as given in Table 1-1 or Table 1-2.

    Research use only,Commercial use is prohibited.

    If you want to use it ,you can buy from following link:

    http://www.webstore.jsa.or.jp/webstore/Com/FlowControl.jsp?lang=en&bunsyoId=JIS+G+3454%3A2012&dantaiCd=JIS&status=1&pageNo=0


    免费男人下部进女人下部视频,男人扒开添女人下部免费视频,男人的J放进女人P的视频