Basic info. Model no.: usv01 Connection form: welding Structure: swing Function: ddcv double lobe Color: grey, white Name: pvc swing check valve Size: 2-1/2¡ä¡ä-6¡ä¡ä Export markets: global Additional info. Trademark: era Packing: cartons Standard: 2-1/2¡ä¡ä-6¡ä¡ä Origin: china Hs code: 39173000 Production capacity: 1000000pcs/month Product description Our company is specialized in supplying and exporting of all kinds of plastic valve, pvc pipe and fitting products which have many years experience in this field. We sincerely want to supply you with high quality products and perfect service based on our most efficient management and professional work teams. Equipped with 800 injection machines, 163 extrusion machines and 8000 moulds, yonggao co., ltd. Reached a sales turnover of usd398, 700, 000 in 2012, including export sales of usd47, 000, 000 covering 224 countries all over the world. Upvc valves: No According to the sizes