CS seamless pipes size 40 mm NB sch.40 as per ASTMA 106 Gr B
題目:
CS seamless pipes size 40 mm NB sch.40 as per ASTMA 106 Gr B in 5.00 - 5.80 mtrs length
解答:
CS(carbon steel) 碳鋼
seamless pipes 無縫鋼管
size 尺寸
40 mm NB 公稱直徑40mm
NB—公稱直徑
sch.40 壁厚等級
as per 按照
ASTM A106 Gr B 是規格材質,這種材質和國內用20#差不多.
5.00 - 5.80 mtrs length 5.00-5.80米長
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