单项选择题
A.maximum working pressure B.bursting pressure C.safety relief valve setting D.maximum temperature
A bench hook is used for（）.A.handling of cargo casesB.h...
单项选择题A bench hook is used for（）.
A.handling of cargo cases B.hanging oilskins C.sewing canvas D.splicing small stuff
A 6x19 wire rope would be（）.A.6 inches in diameter and ...
单项选择题A 6x19 wire rope would be（）.
A.6 inches in diameter and 19 fathoms long B.6 inches in circumference with 19 strands C.6 strands with 19 wires in each strand D.19 strands with 6 wires in each strand
A 6x12，two-inch wire rope has（）.A.12 strands and a two-...
单项选择题A 6x12，two-inch wire rope has（）.
A.12 strands and a two-inch diameter B.12 strands and a two-inch circumference C.6 strands and a two-inch diameter D.6 strands and a two-inch circumference
