用tongue and groove face造句子，“tongue and groove face”造句

3、Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 5.0MPa (50 bar)

1、Steel pipe blank flanges with tongue and groove face for PN 15.0MPa (150 bar)

2、Integral steel pipe flanges with tongue and groove face for PN4.0MPa(40 bar)