DN 壁厚

A 15 SCH 20S 2.6

A 20 SCH 20S 2.6

A 25 SCH 20S 3.2

A 32 SCH 20S 3.2

A 40 SCH 20S 3.2

A 50 SCH 20S 3.6

A 65 SCH 20S 3.6

A 80 SCH 20S 4

A 90 SCH 20S 4

A 100 SCH 20S 4

A 125 SCH 20S 5

A 150 SCH 20S 5

A 200 SCH 20S 6.3

B 250 SCH 20S 6.3

B 300 SCH 20S 6.3

B 15 SCH 20S 2.6

B 20 SCH 20S 2.6

B 25 SCH 20S 3.2

B 32 SCH 20S 3.2

B 40 SCH 20S 3.2

B 50 SCH 20S 3.6

B 65 SCH 20S 3.6

B 80 SCH 20S 4

B 100 SCH 20S 4

B 125 SCH 20S 5

B 150 SCH 20S 5

B 200 SCH 20S 6.3

B 250 SCH 20S 6.3

B 300 SCH 20S 6.3

SCH 20S絕對不是指不鏽鋼材質！是管子壁厚的代號