... " to 24"Wall thicknessSCH5S to SCH160, XS, XXSThickness ToleranceInternational standards : +-12.5% ,If the customer must shrink tolerance, we can do ... , St45-8STPG42, STS38 , STB33Steel tube lengthCommon size Fixed length:4-12 m, 5.8-6 mRandom length and Fixed range lengthPort processing2 ...