1)corrosion resistant 2)small ones are suitable for narrow and small palce 3)variable size 4)big dirving torque 1)corrison resistant/  ball and body are made of high quality stainless steel2)meet mud medium environment3)big hydraulic driving torque4)variabie...

1)The hydraulic driving torque is big 2)made of high quality stainless steel 3)corrosion resistant The ball and bod of the ball valve are all made of high quality stainless steel to get better corrosion resistant property.The metal-sealing is used to the ball valve to meet the...