SWI 钢窗协会(Steel Window Institute)
TCA 美国瓷砖协会(Tile Council of America, Inc.)
TPI 桁屋架板协会(Truss Plate Institute)
UBPVLS 压力锅炉法律协会(Uniform Boiler and Pressure Vessel Laws Society, Inc.)
WPCF 水污染防治基金会(Water Pollution Control Federation)
WSC 水资源委员会(Water System Council)
WSFI 木造及合成地板协会(Wood and Synethic Flooring Institute)
WWMMP 美东木制模具生產协会(Western Wood Model Manufacture Product)
WWPA 美东木制商品协会(Western Wood Products Association)
