{"img":"","passBy":"0","picBd":"0","size":"1","bdSize":"1","cwidth":31,"cheight":35,"picBdRadio":"0","borderType":"solid","jump":"0","definedUrl":"","isPicBd":"0","effectBdLine":"solid","image":"http://oss.xinghuo86.cn/842521101991944/844195677863965.png","picWidth":"31","picHeight":"35","inpColor":"","color":"#000000","type":0,"effectBdColor":"#000000","hasEdit":true}
熱收縮膜的前世、今生及未來
發布日期:2022-05-23 00:16:48瀏覽量:84

收縮膜是一種在生產過程中被拉伸定向,而在使用過程中受熱收縮的熱塑性塑料薄膜。早在1936年,薄膜的熱收縮就得到了應用...

性欧美13处14处破在线观看_精品久久久久久中文字幕无码