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SD943H electric hard seal telescopic butterfly valve
SD941X electric soft seal telescopic butterfly valve
SD943H-16C/25C electric telescopic butterfly valve
SD941X-10C/16C electric telescopic butterfly valve
GID electric vacuum butterfly valve
D973H stainless steel electric wafer butterfly valve
D973H electric hard seal butterfly valve electric wafer butterfly valve
D973H electric regulating butterfly valve electric wafer butterfly valve
D973H-16C/25C electric three eccentric butterfly valve