Watertight Integrity Testing Providers

Senda Steel Plate Thickness Measurement is a Shanghai-based inspection contractor specialising in hull ultrasonic thickness gauging and complementary tightness testing for commercial shipping using the ports of the Yangtze Delta.

Senhai Marine Co., Ltd. is based in Nantong, Jiangsu Province, providing marine safety and inspection services to commercial vessels calling at Yangtze River estuary ports and along the East China coast. The company brings togethe

Seven Seas Electronic Co., Ltd., founded in 1996 and headquartered in Shanghai, is a Chinese marine electronics specialist focused on communication, navigation, safety and security systems for ocean-going tonnage trading worldwide

SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. is the Shanghai-based operational arm of SGS-CSTC, a joint venture established in 1991 between the SGS Group of Geneva and the China Standard Technology Development Corpor

Shandong Haisheng Oceaneering Group is based in Dongying, on the Shandong coast at the mouth of the Yellow River, and supports merchant shipping with underwater inspection, hull integrity testing, tightness verification and non-de

Shandong Norton Inspection & Testing Co., Ltd., known in Chinese as Shandong Nuodun Jianyan Jiance, is an independent inspection and non-destructive testing organisation based in Zhaoyuan City, within the Yantai prefecture on the

Shanghai Baocheng Ship Engineering is a Shanghai-based inspection contractor supporting commercial shipping at the Yangtze Delta's major ports and repair facilities. The firm is approved by ABS, China Classification Society and DN

Headquartered in Shanghai with a nationwide branch network, Shanghai Changyun Ocean Engineering Co., Ltd. is a specialist underwater contractor serving the merchant shipping, offshore wind, port and bridge sectors. The Changyun gr

Shanghai Gacy Marine Service (Qingdao) Co., Ltd. is the Qingdao branch of Gacy Marine, a Chinese ship-repair and marine technical services group founded in 2005 and headquartered in Pudong New Area, Shanghai, with additional offic

Shanghai Haiyu Lifesaving Equipment Co., Ltd is a Shanghai-based ship service contractor supporting merchant vessels calling at Shanghai, Waigaoqiao, Yangshan and Wusongkou with a broad portfolio covering life-saving appliances, f