1. Instruction
CR-39 flat resin is made up by special craft ,its mainly material
is resin CR-39 and auxiliary with other materials.
2. Purpose
Our products is always popular use in protecting welding goggles
and auto- darking liquid crystal glass .It has advantage of strong
strength, against impact ,don cling welding remnant , light weight
and coefficient of penetrating ray is above 90%
3. Standard:
It satisfy importer standard after test of fire resistance , cold
or heat and coefficient of penetrating ray