老湿亚洲永久精品ww47,欧美性猛交XXXX黑人猛交,午夜精品一区二区三区在线观看,青青久在线视频免费观看,久久精品免费一区二区三区,亚洲AV永久纯肉无码精品动漫,国产又色又爽又刺激在线观看,日韩一区二区三区无码视频,亚洲美女搞黄视频,欧美丰满熟妇XXXX


    OT-33


    Chemical Name: polymer sulfur
    Molecular Formula: Su
    CAS NO. : 9035-99-8
    Executive standard:GB/T18952-2017
    Specification:

    Item

    Index

    OT-33

    OT-20

    Appearance(Visual inspection)

    Yellow powder

    Yellow  powder

     Element SulfurContent, %  

    66.00

    79.00

    Insoluble Sulfur Content,%      

    62.00

    75.00

    Oil Content,%  

    32-34

    19-21

    Acidity(H2SO4),%              ≤

    0.05

    0.05

    Ash, %                       ≤

    0.3

    0.3

    Fineness. thru 149μm,%     ≤

    1.0

    1.0

    Properties: nature nontoxic, combustible, yellow powder. As with the S-isomer, said mu-sulfur, high polymerization forms were not soluble in carbon disulfide and other solvents. Mu-sulfur instability can be gradually transformed into cubic crystal-sulfur, a few weeks at room temperature 50% change, as long as 80 oCwith changes in a few minutes, this need by adding stabilizer to reduce its rate of change.

    Application: uses insoluble sulfur used rubber industries, as curing agents make rubber surface spray cream, which will improve the steel-adhesive binding, because the plastic uniform distribution, which would ensure the quality of vulcanization, is the best rubber curing agent, it is widely used tire carcass compound , in particular meridian tires all steel, can also be used for cable, Cots, rubber products such as rubber compound.

    Packing: Polypropylene knitted bags lined with polyethylene bags.Net weight 25kg per bag.

    Storage: The product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight.





      Next product: HD OT-20

    国产在线精品一区二区不卡麻豆| 最新欧美日韩一区二区三区| 久久久久精品无码一区二区三| 香蕉视频在线观看国产| 国产精品天天看特色大片互動交流| 可以直接进入网站的正能量视频,一级a视频| 亚洲码专区亚洲码专区| 久青青视频精品免费观看| 人妻无码熟妇乱又伦精品| 99久久精品免费看国产一区二区| 欧美a级视频在线2019亚洲视频欧美| 亚州日本乱码一区二区三区| 成午夜精品一区二区三区| 亚洲精品成人片在线观看精品字幕| 无码纯肉视频在线观看免费| 国产日韩在线亚洲字幕中文| 亚洲AV成人一区二区三区观看| 曰批视频免费40分钟野战| 欧美精品第一区二区三区| 欧美性猛交XXXX乱大交丰满| 一区二区狠狠色丁香久久婷婷| 久久综合九色综合欧美就去吻中文字幕最新在线| 在线无码一区二区三区不卡| 吃奶呻吟打开双腿做受动态图| 丁香色婷婷国产精品视频| 久久久久久久久久久高潮一区二区| 免费人成视频在线播放| 被按摩的人妻中文字幕| 免费一级全黄少妇性色生活片| 精品久久久无码中文字幕边打电话| 国产精品1000夫妇激情啪发布亚洲乱码| 精品国产乱码久久久久久1区二区| 亚洲AV香蕉一区区二区三区| 欧美成aⅴ人高清免费| 福利无码电影在线看| 国产色诱视频在线播放丝袜| 人妻无码aⅴ不卡中文字幕| 国产精品一区二区av不卡| 国产高清精品一区二区不卡| 人妻少妇乱子伦无码专区| 国产人成视频在线观看|