Square flange heaters (boiler heaters) are suitable for constrained areas, square and round flanges are made of compact elements that are easily installed by tightening a series of bolts.
锅炉加热器适合用于限制区，方形和由小型加热元件制成的圆形法兰。
High quality carbon structural round bloom, seamless tube bloom used in high pressure boiler, alloy structural steel tube blooms are all up to the general standard.
优质碳素结构钢圆管坯，高压锅炉用无缝管坯，合金结构钢管坯等均达到国标中的各项要求。
He gave them a casual glance, then suddenly changed direction, slipped round the back of the office buildings, and made his way to a waste-store next to the boiler-house. He went in.
屠维岳不介意似的瞥了他们一眼，忽然转了方向，抄过那管理部的房子，到了锅炉房旁边堆废料的一间空房前，就推门进去。
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