千金被调教室跪趴SM,日韩精品一区二区三区免费视频,三级4级全黄60分钟,国产成人无码免费看片软件

全國(guó)咨詢(xún)熱線

13823613629

當(dāng)前所在位置 :首頁(yè) - News - Common problem

News

聯(lián)系我們  contact us

手機(jī):13823613629
電話:0769-82937713
q q : 425675360
地址:東莞市常平鎮(zhèn)橋?yàn)r村利氏工業(yè)區(qū)C10廠房一樓

What can human silica gel do
發(fā)表時(shí)間: 2018-12-05     瀏覽次數(shù): 1777次

It has excellent fluidity, good operability, no distortion, high temperature, acid and alkali resistance, no expansion, good tension, good tear strength, many times of mould turning, and can be used repeatedly. It is suitable for medium and small parts with simple pattern, and easy to demould. The shrinkage rate can reach two thousandths.



上一篇:What can human silica gel do 下一篇:沒(méi)有了


展開(kāi)