... , helm seat etc. for deck machining use apply to vessel use.(2) Parts for steam turbine.(3) ... metallurgical engineering .(7) Support of bridge applies to bridgework .The product sells to: Domestic, Japan, America, Korea, Singapore ... –support export authority, 95% of product apply to export. The max weight of one piece product ... ,ABS,CCS,Germany classification society attestation. Combination Sheave