日韩桃色精品,AV日韩网,国产女人精品免费网站,射久久久久久久,超碰97在线直播,思思热999re,久久大香蕉在线视频,国产视频九色在线,在线极品国产精品专区

  1. 首頁(yè)
  2. 化工助手
  3. 化學(xué)配方數(shù)據(jù)庫(kù)
  4. METALS AND THEIR TREATMENT
化學(xué)配方數(shù)據(jù)庫(kù)
配方類(lèi)型： METALS AND THEIR TREATMENT
配方說(shuō)明： Acid Zinc Plating
配方組成： Zn Cl2/14 g/l
Temperature/30C (Range: 25-40)
H3BO3/12 g/l
Current density (A/ft^2)/5-75 g/l
Zn SO4.H2O/180 g/l
pH (electrometric)/4.0 (Range: 2.5-4.5) g/l
配制方法： Deposits are smooth, white, and lustrous in the indicated range of current densities. the bath is based primarily on sulfates, in order to provide whiter deposits with less tendency towards burning. A small amount of zinc chloride is present to improve appearance and coverage at low current densities.

返回?cái)?shù)據(jù)庫(kù)查詢(xún)
QQ: 2241752642
微信二維碼
電話: 19906633110
和政县| 磐石市| 潍坊市| 富源县| 澜沧| 北辰区| 大新县| 赣榆县| 沁阳市| 抚宁县| 全椒县| 女性| 郑州市| 潜江市| 嘉峪关市| 蛟河市| 夹江县| 鹿泉市| 景东| 北碚区| 海口市| 基隆市| 宜兴市| 文水县| 平邑县| 德令哈市| 昌乐县| 胶州市| 彰化市| 岳普湖县| 南宫市| 临洮县| 东宁县| 什邡市| 青冈县| 长子县| 肇东市| 泉州市| 库车县| 伊川县| 华容县|