Pipe truss by purlin , even between a beam and the whole structure by supporting system.

管桁架之间通过檩条、连系梁和支撑系统把整个结构连成整体。

youdao

Pipe truss by purlin , even between a beam and the whole structure by supporting system.

管桁架之间通过檩条、连系梁和支撑系统把整个结构连成整体。

youdao