Shandong air conditioning electric insulation valve

Shandong air conditioning electric insulation valve sales call 13573440778. electric control valve closed off off off regulating valve regulating valve manufacturer leafy square round off the valve regulating valve valve industrial plant civil construction ventilation, air conditioning and air purification project indispensable component, generally used in air conditioning, ventilation pipes, used to adjust the air flow manifold can also be used for fresh air is mixed with return air regulation.