不锈钢复合管：材质为铁管，外面包裹着不锈钢层。

Stainless steel composite pipe: the material is iron pipe, and the outside is wrapped with stainless steel layer.

比较坚固，管口封闭良好的情况下可保证其防锈期限与纯不锈钢无异。

It is relatively solid and can guarantee its rust proof period is the same as that of pure stainless steel when the nozzle is well sealed.

不锈钢管：整个管都为不锈钢的较轻。

Stainless steel pipe: the whole pipe is light stainless steel.

承重能力没有复合管好，但是不容易生绣，价格昂贵。