Durable degree is high , be able to bear corrosion , firm Pump body Pump bodyEfficiency: Annual output of more than 10,000 tons of ... , port working equipment .(4) Pump body, valve body etc. for petrochemical industry working.(5) Gear, Bull Gear, axial seat, big shaft, block ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. Pump body