... Out diameter :10-530mm Length :5-12m Specifications10# Oil Cracking Pipe Standard : API, SPEC,GB9984 Thickness :1.5-40mm Out ... diameter :10-530mm Length :5-12m Product name10# Oil Cracking Pipe/Tube Standard API, SPEC,GB9984 Grade 10#,20#,12CrMo,15CrMoThickness ... +15822945756 About our companyWe are Tianjin,A LARGE HIGH-PRESSURE ALLOY PIPE SALES,Ltd.Our products are exported to India, Indonesia, ...