合作厂商/Client:广州华隧威预制件有限公司Guangzhou Huashuiwei Precast co., ltd签订时间Year/ Month:2019/04钢模尺寸（外径）/Specification of Segment Ring:φ6.2 × 0.38T × 1.5L(6P/R)型号/Type of mould:标准环1 套/Standard Ring
右转弯环1 套/Right Tapper Ring振动类型/Vibration Method:附着式/Pneumatic vibrator

合作厂商/Client:浙江永和建材有限公司Zhejiang yonghe building materials co. LTD签订时间Year/ Month:2019/03钢模尺寸（外径）/Specification of Segment Ring:Φ6.6 × 0.35T × 1.2L(6P/R)型号/Type of mould:通用环4 套/Universal ring振动类型/Vibration Method:人工振捣/Insert Vibration

合作厂商/Client:安藤ハザマ兴业株式会社Hazama Ando Corporation签订时间Year/ Month:2019/03钢模尺寸（外径）/Specification of Segment Ring:Φ14 × 0.7T × 2L(14P/R)型号/Type of mould:标准环2 套/standard ring振动类型/Vibration Method:振动台/Vibration table

合作厂商/Client:浙江永和建材有限公司Zhejiang yonghe building materials co. LTD签订时间Year/ Month:2019/02钢模尺寸（外径）/Specification of Segment Ring:Φ6.7 × 0.4T × 1.2L(6P/R)型号/Type of mould:标准环4 套/Universal ring
左转弯环1 套/Left Tapper ring
右转弯环1 套/Right Tapper ring振动类型/Vibration Method:振动台/Vibration table

合作厂商/Client:中国石油管道局工程有限公司第四分公司The fourth branch of China petroleum pipeline engineering co. LTD签订时间Year/ Month:2019/01钢模尺寸（外径）/Specification of Segment Ring:Φ3.54 × 0.23T × 1.2L(6P/R)型号/Type of mould:通用环2 套/Universal ring振动类型/Vibration Method:人工振捣/Insert Vibration