Steel and cast iron Pipes and fittings Nonferrous metals Baja dan besi tuang Pipa saluran dan fitting Logam bukan besi TECHNICAL COOPERATION PDAM PONTIANAK - OASEN GOUDA…
![6. PART 3 STEEL and Cast Iron Febr[1]](https://static.cupdf.com/doc/330x215/5571f76f49795991698b62eb/6-part-3-steel-and-cast-iron-febr1.jpg)