Hangzhou Silicone Tech Adhesive Co., Ltd is a professional manufacturer of silicone sealant (acetic silicone sealant and weather sealant), hot melt butyl sealant and sealing material for insulating glass and building material. Our company built on 2003 , has acquired ISO9001 certificate in 2005, we have produced 1200 metric tons sealant in 2018, 70...