... 3. Competitive prices 4. Excellent customer service Aluminum Extension Ladder 16 ft. Shanghai Yi Jing Mold Factory Our company specializes in ... casting, die casting, investment casting, injection molding. Usage of products: 16 ft. Aluminum Extension Ladder provides dependable, twist-proof performance. It ... ) 21-5970-6057Fax: (+86) 21-6979-9291 Aluminum Extension Ladder 16 ft.