毛片在线观看AV_久久精品国产亚洲αV麻豆网站_在厨房被c到高潮_亚洲国产男人的天堂你懂的_国产极品粉嫩馒头一线天_最近更新中文字幕手机版_午夜视频等优质视频资源_亚州性夜夜射在线观看_高清无码人妻精品内射视频_2021中文字幕无码免费

First, the product code: Q / YS.641 (Yi Shun brand)

Second, the product uses:

This product is suitable for chemical nickel plating layer, electroplated nickel layer of the old antique, soaked for a few seconds after the product, and then washed and dried, you can get the ancient colors, similar to the storage of products for decades, while the surface Lost, suitable for buttons and other old antique.

Third, the use of methods:

1-3 times the product after adding water, and then immersed in the nickel workpiece at room temperature diluted in the old antiquity agent, about 10-20 seconds, remove the workpiece, washed and then dried.

Fourth, note：

the product is packed in plastic containers, not in contact with the skin, this product is non-toxic and environmentally friendly, but corrosive.

Other processing：Chemical Plating Liquid Train、Zinc coating imitation gold agent、Chemical silver plating liquid (copper substrate)、Stainless steel chemical thicker liquid copper  plating