无码中文字幕日韩专区,真人无码作爱免费视频禁hnn,中字幕视频在线永久在线,国产av无码专区亚洲av麻豆丫

Welcome to Dongguan ITA Intelligent Manufacturing Technology Co., Ltd Feedback | Product | Contact Us | Chinese |

National Advisory Hotline

+86-769-89296989

How to judge the quality of extruded plastic molds

Nowadays, the use of extruded plastic molds is also very common. If you do not notice the quality problem at the time of selection, then the later stage will seriously affect the normal use. Today, I will tell you how to judge the quality of plastic molds.

First, we must look at the thickness of this mold when choosing, although the mold does not need to use too much force, or other harsh environment, but due to the phenomenon of mold and demoulding often encountered, the plastic mold will be very Easy, problems such as loss, deformation, etc. The basis for solving these problems is to widen the thickness of the mold. Therefore, in the process of selecting the mold, we can analyze the quality of the mold from the thickness.

Second, look at the specifications of the extrusion die, the good mold can control the size of the extruded plastic products produced in the error of a few millimeters, and the inferior mold often produces a product error of several millimeters or even A few centimeters.

Third, look at the material and workmanship of the entire mold, good mold should be very smooth inside and outside, look shiny, and feels slightly moist, hand inferior mold may have burrs or pits on the surface, the two It is to stand tall.


Share to:
Top phone map Home
男女男精品免费视频网站| 国产熟睡乱子伦视频在线播放| 国精产品无人区一码二码三蘑菇| 久久精品亚洲精品无码金尊| 公天天吃我奶躁我的在| 国产黄A三级三级三级| 久久久久久AV无码免费看大片| 无码人妻精品一区二区三区99不卡| 亚洲精品无码日韩国产不卡AV| 97SE亚洲国产综合自在线不卡| 亚州日本乱码一区二区三区| 国产日韩AV免费无码一区二区三区| 国产精品成人啪精品视频免费网站| 日本欧美一区二区三区在线播放| 欧美精品高清在线观看| 国产亚洲人成无码网在线观看| 久久久久AV无码免费网| 亚洲乱码卡一卡二卡新区仙踪木木| 免费人妻精品一区二区三区| 亚洲AV第一页国产精品| 国产在线亚州精品内射| 国产精品日日摸夜夜添夜夜添2021| 亚洲AV无码久久精品蜜桃| 国产精品边做奶水狂喷无码| 欧美黑人巨大V64姿势| 97超碰国产精品最新| 久久久久无码精品国产AV蜜桃1| 久久久久人妻精品一区三寸蜜桃| 国产精品久久久久久av| 日韩丰满少妇无吗视频激情内射| 亚洲AV无码天堂一区二区三区| 日韩精品亚洲人成在线| 精品国产成人国产在线观看| 亚洲AV色香蕉一区二区三区蜜桃| 日本xxxx色视频在线播放| 午夜毛片不卡高清免费看| 亚洲av无码久久寂寞少妇| 九九精品国产亚洲av日韩| 久久天天躁狠狠躁夜夜躁2014| 成全影院电视剧在线观看| 无码毛片一区二区三区本码视频|