When calibrating the concentration of the standard titration solution according to the "GB / T601-2002 Preparation of Chemical Reagent Standard Titration Solution", two people are required to carry out the experiment, each doing four parallels. The relative value of the critical range [CrR95 (4)] is 0.15%. The relative value of the two people's total eight parallel determination results should not be greater than the relative value of the repeatable critical range [CrR95 (8)] of 0.18%.
Paper Jewelry Box is a kind of jewelry box made of cardboard. The main material under the surface is paper board, which means paper box is lighter than many other kinds of jewelry box and is easier to change the shape.
Brand Name: Jinao
Place of Origin: Guangdong, China(mainland)
Surface Material: Customized
Inner Material: Velvet/ foamed plastic
Color: Customized
Size: Multi-size + Customized
Feature: Classic/ Elegant
Logo Printing: Customized
Usage: Jewelry Box/ Gift BoxPaper Jewelry Box,Paper Ribbon Jewelry Box,Jewelry Paper Gift Box,Paper Jewelry Packaging Box
DongGuan Jinao Packaging Products Co., Ltd , https://www.jinaojewelrybox.com