... ,10 3/4,11 3/4,13 3/8,also can be manufactured according to customers' requirements.5)Wall thickness: 3 ... .68~16mm6)Length: 6M~14M,R1,R2,R3 length can be manufactured by customers' requirements.7)Type of ends: BTC ... -dip, Shot Blasting, Varnish 9)Coupling,Pup-joint and thread protector can be required10)Type of process: seamless or ERW11)Application: Conveying ...