... mold,injection molding 3.Light transmittance: 93% 4.Temperature:-35C--+ 100 top-quality LED light PC/PMMA plastic optical lens:1. ... material:718,2738,S136, SKD61,H13,SKD11,etc, with high hardness.Advanced equipments:precision grinder,milling machine,driller,wire ... mold drawing.Our principle is take quality as the first consideration with sincere service,good price,prompt delivery, mainly export ...