日本黄色录像日韩日B性福利|日韩精品激情乱伦视频|jjzz欧美成人摸视频|乱–伦一区二区三区|黄色无码视频看a无码视频|国产电影精品一区|成人黄色A片超碰亚洲|国产成人激情自拍视频|日韩一级a爰片久久|日韩在线观看免费av

關(guān)于我們

設(shè)計資質(zhì)工程設(shè)計單位環(huán)境工程甲級、市政行業(yè)乙級、工程咨詢單位乙級

建筑資質(zhì)環(huán)境工程專業(yè)承包壹級、市政總承包貳級、機電總承包壹級、機電安裝專業(yè)承包貳級、水利水電工程施工總承包

運營服務(wù)認證城鎮(zhèn)集中式污水處理設(shè)施運營服務(wù)一級、工業(yè)廢水處理設(shè)施運營服務(wù)一級



Design Qualification:

Engineering certificate for environmental project grade 1 and municipal drainage project grade 2、project consulting certificate grade 2


Construction Qualification:

Contracting certificate of environmental protection project grade 1

General contracting certificate of municipal construction grade 2

General contracting certificate of mechanical & electrical engineering grade 1

Contracting certificate of mechanical & electrical equipment installation for construction grade 2

General contracting certificate of water conservancy and hydropower project grade 2


Operational Services Certification:

Urban centralized sewage treatment facilities operation service level I

Industrial wastewater treatment facilities operation service level I