Specifications of spiral pipe:
1.outside size:219-3000mm
2.material: Q235, Q345, X42-X80.ST52,ST45, A53 and so on
3.criterion for implementation:SY/T3087-1999,SY/T5037-2000,GB/T9711.1,GB/T9711.2,API 5L, API 5CT,etc.


Delivery time:In 20 days after receive deposit payment.
Packaging:In bundles,black Varnished,bevelled ends,end caps.
Third Party Inspection:BV, SGS, Lloyds are acceptable which charges will be for buyer's account.
Payment terms:T/T-30% in advance, balance to be paid  before dispatch.