skid lifting impact factor
api rp2a addresses this issue. for lift on land or on inland waters, use 1.15 for members not connected to the lifting eyes, and 1.50 for lifting eyes and any member connected to them. for offshore lifts use 1.35 and 2.00 for the values.
IP卡
狗仔卡
发表于 2009-9-15 23:12:36
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡