We piping and hose the details, because each specific contents are as follows:

Standards: The United States ASTM a554 / a269
Rating: 201,202,301,304,304 L, 316,316 liters
Polishing: 10K, 8 K, 6 k, 400,320,240,180,80,
Thickness: 0.25 mm -3 mm
Length: 6 (also customized)

Size:
An oil pipeline - diameter (mm):
9.5,12.7,16,17,18,19,20,21,22,23,24,25,27.3,
28,32,36,38,40,45,47,51,60,63,73,76,89102114133141159219
Square pipes - External Dimensions (mm):
12x12, 15x15, 17x17, 18x18, 19x19, 20x20, 22x22, 23x23, 24x24, 25x25,
28x28, 30x30, 36x36, 38x38, 40x40, 50x50, 60x60, 70x70, 80x80
Rectangular Channel - External Dimensions (mm):
20x10, 23x11, 24x12, 25x13, 28x13, 30x15, 33x22, 35x23,
38x25, 40x20, 48x23, 50x15 50 x25, 60x15, 60x30, 73x43, 75x45, 95x45
Customer demand is highly appreciated