1.surface is smooth and beautiful 2.water-proof design 3. high precision and stability 4.small ... types of filling, control, and other functions approved.<2>Technology IndicatorsAllow basic error: ± 0.2% ± 0.5% Nominal Path DN (mm): ... ): stainless steel 1.0, 1.6,2.5,4.0,6.3 Carbon Steel 2.5,4.0, 6.3, 9. ... /300300MaxMin720807201607207272014467072670925606256080Accuracy level0.50.20.50.20.50.20.50.2