http://www.66cap-sules.com/gelatin-capsule/ Gelatin Capsule manufacturers Description Tightness Take 10 capsules of this product, gently pinch both ends of the vacant capsule with your thumb and forefinger, rotate and pull it apart without sticking, deforming or cracking, then fill it with talcum powder, fit the cap and body together, and straighten the capsules one by one at a height of 1m. Falling on a wooden board with a thickness of 2cm should not leak powder; if there is a small amount of powder leaking, no more than 2 particles. If it exceeds, another 10 tablets should be taken for re-testing, all of which should meet the requ