Weifang Huafeng Adhensive Co., Ltd was established in 2010 , Located in Linqu county ( the largest building material base in China ), Our company mainly specialize in the R&D of Silicone sealant , and has more than 20 years experience in the construction fields . Our company strictly meet ISO9001 quality system / ISO14001 environmental system , we hope to become your reliable partner in the near future .