British standard

British Standard BS6349

British Standard Code of Practice

British Standard Fine Thread

British standard sieve

British Standard Specification

British Standard Thread

British Standard Time {= BST}

British Standard Wire Gauge

the British Standard

standard pipe

standard pipe support

standard standard of vo|

95th standard project standard

Standard addition method and internal standard method

standard of aroma type and standard sample

branch pipe welded directly to the run pipe

copper pipe and aluminum pipe

Pipe in Pipe

pipe in pipe casing