aspartic acid asparticacid1.assay:>98.5% 2.cas:56-84-8 3.standard:FCCIV,1996 4.White, oderless crystals or crystalline powder having a slightly acid taste. It i
L-malic acid L-malic acid1.assay:>99.0% 2.cas:97-67-6 3.standard:Japanese Standard of Food additives VII 4.White crystals or crystalline powder, fairly hygrosc
photochromic lenses photochromic lenses 1. no ground color 1.72mm diameter available 2. HMC+EMImulti-coating , 3.brown andgreycolor 4. power range: minus: -20.0/-4.
cr-39 optical lens cr-39 optical lens 1.72mm diameter available 2. HMC+EMImulti-coating , 3. bule, greee,and goldencoating 4. power range: minus: -20.0/-4.00 plus:
optics lens optics lens 1. 65mm and 70mm diameter available 2. HMC+EMImulti-coating , 3. bule and gree and golden coating 4. 1.49, 1.56, and 1.61 index , 1.5
1.56 optical lens(uv400) 1.56 optical lens(uv400) 1.75mm, 70mm diameter available 2. HMC+EMImulti-coating , 3. bule, greee,and goldencoating 4. power range: minus: -20.0/
cr-39 lens cr-39 lens 1.72mm diameter available 2. HMC+EMImulti-coating , 3. bule, greee,and goldencoating 4. power range: minus: -20.0/-4.00 plus: +8.00/+2
cr-39 polarized lens cr-39 polarized lens 1. faster delivery and good quality
cr-39 photochromic lens cr-39 photochromic lens 1. grey and brown color, 2. good light transmission 3. color change quickly 4.no ground color 5.power range:S:-12.00 C:-2.0
photochromic lens photochromic lens 1.photochromic grey and brown color, 2.No ground color 2. HMC+EMI AR Coating 3. size:72mm 4.good light transmission 5. color chang
