We manufacture different model specificationsand customize for you , safety valve, power station valve, check valve, ball valve, butterfly valve, drain valve, balancing valve, regulating valve, Oilfield special valve, Open and close valve, Cut-off valve, gate valve and so a dozen or more than 1000 specifications of the product,   with high quality in nice price.contact:158945025#qq.com.johndoven#msn.com.skpype:johndovenme