壳体材质;铁壳及不锈钢LW16-35/1000-20 壳体材质;铁壳及不锈钢LW16-35/1250-20 壳体材质;铁壳及不锈钢LW16-35/1250-25 壳体材质;铁壳及不锈钢LW16-35/1250-31.5 壳体材质;铁壳及不锈钢LW16-35/1600-31.5 壳体材质;铁壳及不锈钢LW16-40.5/1000-20 壳体材质;铁壳及不锈钢LW16-40.5/1250-20 壳体材质;铁壳及不锈钢LW16-40.5/1250-25