塑料盲沟,盲管地下排水暗沟园林绿化足球场渗排水直径100,200,300
O O B-HCCX I-HCCX O B-HCCX I-HCCX B-HCCX I-HCCX I-HCCX I-HCCX I-HCCX I-HCCX O O O O O O O O O O O O B-MISC I-MISC I-MISC O B-MISC I-MISC I-MISC O B-MISC I-MISC I-MISC