男人J进女人P免费视频无风险,两性故事吃奶添下面,男人的J放进女人P的视频

  • <strike id="6nojv"></strike>

        <object id="6nojv"></object>
        HOME | BOOKMARK | CONTACT US    
        中文版 / English    
        HOME ABOUT NEWS PRODUCTS QUALITY MANAGEMENT FEEDBACK CONTACT US
         
        ·Exhibitio   {2013-07-05}
        ·Welcome t   {2013-07-05}
         
                     PRODUCTS                                                                              

         

            


        Conductive Macromolecule Raw Material for Cable Sheath

        Product introduction                               Type: WDHS2072

        We take macromolecular material as a carrier and add conductive carbon black, antioxidants, and processing aids to make conductive macromolecule raw material for cable sheath by mixing devices.

        Application: perforation ground wire sheath of railway integrated grounding system and other related areas.

        Mechanical and physical performance of this conductive polymer for cable sheath

        No.

        Item

        Unit

        Performance requirement

        Typical value

        Test method

        1

        Tensile strength

        MPa

        ≥10.0

        13.0

        GB/T2951

        2

        Elongation at break

        %

        ≥250

        400

        GB/T2951

        3

        After air oven aging

        (100℃±2℃ 168h)

        Tensile strength change rate

        Change rate of elongation at break

        %

        ≤±25

        ≤±25

        ±20

        ±20

        GB/T2951

        4

        Impact brittleness temperature

        (-40℃±2℃ 3min)

        Invalid coefficient

        ≤15

        0

        GB/T5470

        5

        Thermal shrinkage rate

        (100℃±2℃ 4h repeat for 5 times)

        %

        ≤5

        4

        GB/T2951

        6

        Environmental stress cracking resistance (reagent concentration of 10%, soak time of 48h)

        Invalid coefficient

        0

        0

        GB/T2951

        7

        Environmental protection (content of hazardous substances)

        Conform with technical specifications for conductive macromolecule sheath of perforation ground wire

        The electrical performance of this conductive polymer for cable sheath

        No.

        Item

        Unit

        Indicator

        Typical value

        Test method

        1

        Volume resistivity of this conductive macromolecule sheath (20℃)

        Before aging

        Ω.cm

        ≤0.7

        0.6

        GB/T3048.3

        After air oven aging (100℃168h)

        Requirements: Dry it at 60℃ before use.

        Recommended processing temperature: 180℃~220℃

        Packaging: Paper-plastic bag with moisture-proof lining; it weighs about 25 kg/bag.

        Storage: Guard against moisture and fire. The storage period is one year; dry it at 60℃ for 2 hours before use when stored for over one year

         
         
        HOME    |    ABOUT    |    NEWS    |     PRODUCTS    |    QUALITY MANAGEMENT    |    FEEDBACK    |    CONTACT US
        Tel: 0532-85890119 / 85890262 / FAX:0532-85880936
        ADDRESS:No.19,Fuzhou Road South,Qingdao City EMAIL:wedonk@126.com 技術支持:聯網中國
        男人J进女人P免费视频无风险,两性故事吃奶添下面,男人的J放进女人P的视频