播放中国国产国语纯一级黄片免费看, 大鸡吧快来啊阿啊阿啊黄片在线播放, 中文精品日韩网站在线观看视频免费, 别揉我奶头~嗯~啊~一区二区三区,AV无码播放一级毛片免费古装,亚洲春色一区二区三区,91大神极品,美国一级大黄一片免费下载,午夜爽爽爽男女免费观看软件

化學配方數(shù)據(jù)庫
配方類型: MISCELLANEOUS
配方說明: Waterproofing Leather
配方組成: "Polypale" Resin/30
Mineral Spirits/50
"Oronite" Polybutene No.128/20
配制方法: This mixture will penetrate into the interior of leather almost as well as the solvent when used by itself. The resulting leather exhibits longer wear, greater resistance to moisture, non-skidding, shrinkage-resistance and greater flexibility. formulations can be developed to give lighter-colored leather when desired.

返回數(shù)據(jù)庫查詢
QQ: 2241752642
微信二維碼
電話: 19906633110