... According to customer's demand, can adopt stainless steel: SS201,SS202,SS304and environmental protection as liquid silicone. ... in glass lid 1/3 radius, so after three times over without damage or glass cracks,3 ... testing: add forces will cover glass broken 5X5cm measuring range, the number of particles, 4mm thick glass ... in glass lid 1/3 radius, so after three times over without damage or glass cracks,3 ...