Copper female screw butterfly valve 1. Healthy; Non-toxic; Environmental 2. Long life 3. Corrosion resistant; Heat preservation 4. We can do OEM Copper female screw butterfly valve of gas Professional Design and Advanced Technology We can do best for your Me Material: Brass Sizes: L18*16 to L32*25 Colors: Silver white or yellow Connection: Thread joint Certification: ISO9001, ISO14001 Applications: Cold or hot water supply, heating system including flooring heating, wall heating and radiant, central air conditioning and industrial liquids transportation our copper fittings sell well all over the country and are widely exported to other countries.