... , processing,does not rust size:0.5T*3m,5T*6M HS type series of chain block is a dind of hand ... alloy plating and surface by chain, processing, does not rust.HS Type Chain BlockITEM NO.SIZEPCSMEANSWOHS0380B0.5T×3m130×20×15cm10kgOHS0380D2T×3m135 ... ×20×15cm14kgOHS0380J3T×6m150×26×18cm30kgOHS0380K5T×6m145×36×25cm54kg HS Type Chain Block