一炕四女被窝交换啪啪_99精品一区二区三区无码吞精_欧美又大粗又爽又黄大片视频_免费A级毛片无码,国产精品一在线观看_日韩欧美黄色激情片_精品国偷自产在线视频99_久久经典三级精品电影_综合国产福利视频在线观看 ,少妇真人直播免费视频,艳妇乳肉豪妇荡乳AV无码福利,四川少妇搡BBW搡BBBB,四川少妇BBW搡BBBB槡BBBB,丰满少妇被猛烈高清播放,少妇荡乳情欲办公室456视频,老妇高潮潮喷到猛进猛出,东北少妇不戴套对白第一次,少妇厨房愉情理伦BD在线观看 ,国内精品自在自线视频香蕉伦伦影院精品一区_91免费国产高清在线_狠狠色综合色综合网站嗯_国产麻豆91欧美一区二区_久久国产精品99久久久久久老狼_久久人精品免费特级黄毛片

TOP
Category
五行機械
WeChat
Automatic shooting core machine
The white dynamic core shooter uses coated sand to make cores and is suitable for hot core boxes.The feature of the core shooter is that four guide pillars are used to install the upper and lower mold bases. The upper and lower molds are respectively installed on the upper and lower mold bases. The positioning is precise , then opening and closing molds are divided horizontally, and the material is convenient to take out . It is also equipped with core pulling , which is suitable for the production of complex products. The core shooter is widely used in the foundry industry. The cores made by the core shooter are accurate in size and smooth in surface. The woriing priciple of the core shooter is to inject the core sand mixture with solid thermosetting resin as the binder into the heated core box,and the sand core is preheated in the core box and quickly hardens to a certain thickness .It is taken out to form a finished hig-quality sand core with a smooth surface and precise dimensions.
<< < 1 > >>




万载县| 淮北市| 华亭县| 嘉鱼县| 乌拉特前旗| 裕民县| 文登市| 张家界市| 黎城县| 陇西县| 措勤县| 扶沟县| 枞阳县| 潞城市| 嘉峪关市| 施甸县| 南城县| 襄樊市| 翁源县| 台湾省| 芜湖县| 琼结县| 来宾市| 彩票| 平利县| 温宿县| 额济纳旗| 宁波市| 张北县| 宜兴市| 盐津县| 兰州市| 武定县| 邻水| 南木林县| 嘉鱼县| 鸡东县| 广丰县| 客服| 明光市| 马山县|