♣Sanyun company produces 2 kinds of bicycle seat tube clamps.One is fast-dismantled seat tube clamp;the other is screw-twisted seat tube clamp.Bike seat tube clamp also has other titles such as seat tube button.Bike seat clamp has a lot of dimension.Nowadays,seat tube clamps are divided into CNC seat tube clamp and forging seat tube clamp,etc as per material.The surface dealing crafts include anodized treatment ,electroplate treatment ,color-painting craft,etc.

♣The prime material of bicycle seat tube clamp is aluminum alloy,titanium alloy and stainless steel.The dimension of seat tube clamp is designed as per the dimension of middle tube.The diameter of pipe is generally 28.6,30.2,31.8 and 34.8.Seat tube clamp can have logo as the demand of customers.We can make logo by laser marking and screen printing but the price is different.More alloy bicycle parts.