青青国产精品视频_亚洲一级性爱在线看_91天天在线观看天天精品_国产做a∨在线视频播放

<menu id="l463y"><thead id="l463y"></thead></menu>
    Hotline:
    +86-22-85689619

    Recommmend Products

    Product name Specifications Packing Unit price / yuan
    D-xylose 1g
    Gliese reagent 100ml*2
    Platinum cobalt chromaticity solution Chroma value 1 or 500 black increase 50ml
    Mercapto cotton 5g
    Sulfhydryl cotton tube 6*200mm 1
    Mercapto cotton empty tube 6*200mm 1
    Methylimine-H acid salt Chromogenic reagent 10g
    Silver permanganate Analytically pure 5g
    Sodium carbonate-borax mixed flux 500g
    Austen's reagent 100ml
    Phosphorus-free activated carbon Analytically pure 500g
    Octadecylamine emulsion
    Octadecylamine

    AR

    100g/250g
    13 Records

    Contact us

    TEL:+86-22-85689619

    Contact: Carter Cao.
    Tel/fax: +86-13802127750, +86-18622107711
    Technical consultant:Peng.Zhao     TEL:001(651)283-9609
    Email : cartercao@hotmail.com 

    Mobile

    Moblie

    Copyright(C)2020,Tianjin Guangfu Fine Chemical Research Institute All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice