SINMA provides  professional Welding and Machining OEM service for steel structures according to customers' drawings.

Material:  as customers' requirement, compliance with ASTM, DIN, BS, JIS, NF, ISO etc. standard

Workmanship: cutting, welding, machining, heat treatment, surface finishing, painting, assembly
Inspection: UT, MT, Hardness test, Charpy test(in-house and third party inspection )

Jiangsu Sinma Machinery Co., Ltd. is a professional enterprise engaged in providing solutions for marin engineering and construction machinery.

With numerical control equipments for machining, cutting, molding, welding, finishing machine, painting and testing, we can soon transform various designs and customers’ requests to products with high quality within the budget. And  our company has passed ISO9001:2008 quality management system certification from DNV.

With years exporting experence, we have a group of a number of experienced technicians and high-qualified workers, advanced producing equipments, precise quality test system and perfect sale and after-sale service. We continuously provide customers with system solutions, high quality products and reliable, safe and stable service.

Management System Certificate from DNV

Certificate of Manufacturing Assessment from GL, BV, ABS

Welder Qualification Certificate from BV, CCS

Approval WPS from BV, ABS, LR

etc.