Specification for clayware field drain pipes and junctions 田間排水用陶土管及連接管規(guī)范
Specification for straight concrete and clayware cable covers 混凝土與粘土制直形電纜溝蓋板規(guī)范
Sills and copings - specification for copings of precast concrete , cast stone , clayware , slate and natural stone 窗臺板及蓋頂板.第2部分:預(yù)制混凝土鑄石粘土石片及天然石制頂蓋板
Sills and copings - specification for window sills of precast concrete , cast stone , clayware , slate and natural stone 窗臺板及蓋頂板.第1部分:預(yù)制混凝土鑄石粘土石片及天然石制窗臺板