Tianjin De-Sail Marine Engineering Tech. Co., Ltd. (hereinafter called DS) was founded in May, 2002. The head office is located in Tanggu, Tianjin, China.

DS is engaged in ship and offshore engineering design (both detail and shop design), shipbuilding (mainly in working boat), workmanship engineering, technical service for shipyard, material and equipment procurement, commissioning, test and trial for ship (for both ship owner and shipyard).

DS has two main departments:
-Ship & Offshore Design Department: located in Tianjin, having six main sections, such as Hull and Offshore Structure, Outfitting & Accommodation and HVAC, Piping, Mechanical and Electrical department
-Construction Department: located in Tianjin and Shandong, mainly participating in engineering site services, construction project management and subcontract part of ship construction

DS has certified ISO 9001:2000 Quality Management System by DNV since Oct., 2003. Our Quality Control and Assurance System is based on DNV Class.

DS will enhance the business of our customers through strong technical basis; satisfy customers' needs by our high-quality service, improve ourselves through our strict and scientific management and pursue development via our innovative spirit and hard work.

Through our high-quality and innovative services, we set out to be the most valued business partner of all our customers.

Our management aim is "Customer First, Quality First". DS will create the promising future with our partners both at home and abroad.

Engineering Software
ABS Windows for GHS: Hydrostatics Properties and Stability Calculation;
MAXSURF: Hydrostatics Properties and Stability Calculation and Power Estimated
ANSYS&NASTRAN: General Finite Element Analysis
FASTLINE: Hull Lines Generation and Fairing
MASTERSHIP: 3D Steel Structure Design, Mould loft and Nesting and Cutting Plan
SB3DS: 3D Piping, Vent Duct and Cable Design and Piece Drawing
COMPASS: Input of Geometry; Hydrostatic, Cross-curve, Loading, Freeboard and Ship Floodable Length, Sounding Table and Tonnage Calculation; Subdivision and Damage Stability Calculation of Passenger Ships and Ship Damage Stability Calculation

Main Business
Naval Architecture
Provide the design of all kinds of merchant ships and engineering ships, including basic design, detailed design and shop design for shipyards and ship owners
Provide engineering site services for shipyards
Provide marine engineering project management, technical services and software development
Provide vessel modification design and project technical services
Provide marine equipment procurement and maintenance
Provide vessel maintenance

Offshore Engineering
Provide detailed design and shop design for all kinds of platforms, including structure, outfitting, piping, machinery, electricity and instrumentation
Provide conversion design and function calculation for FPSO
Provide management and technical services for offshore engineering

Ship Building
Build dredgers of various capacities, including 2000m3, 2500m3 and 3000m3
Build anchor handling boats