One is to visually discern. First look at the presence or absence of the logo, usually the crystal products will be marked with 24%, that is, lead oxide composition; then under strong light to see whether there is a reflection of colorful light, crystal has colorless transparency and large refractive index, this is the general glass Products are not available.
The second is the sense of touch. If the visual inspection cannot be confirmed, the weight of the product can be picked up. Since the crystal contains lead oxide, the weight is heavier than that of the glass; if it is a cup, the nail can be clamped to the outside of the cup, as if it is crisp. Echo, it can be proved as a crystal product.
100% COTTON WOVEN FUSIBLE INTERLINING(HDPE/LDPE COATING)
1. Features:
-- More even and smoothly grey cloth
-- Handfeel:Soft,Medium,Medium Hard and Hard as customers' require
-- Perfect bonding strength
-- Excellent shrinkage control
-- Garantee for washable,dry-washable
2. Technical Data:
-- Gray cloth: 100% cotton
-- Width: 112cm
3.Packing:50M/Y per roll, 2rolls per bag
Collar Interlining,White Color Collar Interlining,Cotton Interlining For Collar,Woven Collar Interlining
Baoding Garment Interlining Factory , https://www.bcinterlining.com