I. Pre-Service
1）Scheme stage: Provide professional advice on the selection of building curtain wall materials according to the architect's design concept and the project's geographical environment.
2）Design stage: Visual models are constructed by selecting different building curtain wall materials to assist architects to judge the effect and feasibility of the scheme.
3）Design improvement stage: Build the curtain wall facade design effect drawing and visual model according to the scheme and project requirements. Or according to the approved design proposal, select samples for architects to make early choices.

II. Bidding Phase
1）Budget estimation: Provide customers with detailed material budget and product quantity estimation, and assist customers in project budget planning, mainly including design cost, product cost, packaging and transportation cost, customs clearance, etc.
2）Technical Q&A: Prepare bidding plan diagram, assist customers in technical Q&A and plan discussion throughout the bidding process.

III. System Design Phase
1）Design services: Mainly including system design scheme, structural calculation, construction drawing, installation technical guidance and technical disclosure, etc.
2）Consultancy service: review the compliance, rationality, consistency, safety, manufacturability, optimization, etc. of the third-party construction drawings.

IV. Construction Phase
1）Product supply: Including CIF products, product inspection reports, detailed process drawings, location drawings, technical support (if required), etc.
2）Installation guidance: Provide product installation guidance and handling advice to ensure proper installation of exterior wall materials, improve system performance and service life.
3）After-sales service: Provide continuous after-sales technical support.